1679652 has 72 divisors (see below), whose sum is σ = 4744376. Its totient is φ = 497664.

The previous prime is 1679641. The next prime is 1679653. The reversal of 1679652 is 2569761.

It can be written as a sum of positive squares in 4 ways, for example, as 254016 + 1425636 = 504^2 + 1194^2 .

It is a super-2 number, since 2×1679652² = 5642461682208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 1 + 6 + 7 + 9 + 6⁸ + 5 + 2³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17268 + ... + 17364.

2^1679652 is an apocalyptic number.

1679652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1679652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2372188).

1679652 is an abundant number, since it is smaller than the sum of its proper divisors (3064724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1679652 is a wasteful number, since it uses less digits than its factorization.

1679652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 152 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1679652 is about 1296.0138888145. The cubic root of 1679652 is about 118.8702302153.

Subtracting from 1679652 its sum of digits (36), we obtain a 8-th power (1679616 = 6⁸).

The spelling of 1679652 in words is "one million, six hundred seventy-nine thousand, six hundred fifty-two".