1679625 has 24 divisors (see below), whose sum is σ = 3029832. Its totient is φ = 895200.

The previous prime is 1679609. The next prime is 1679627. The reversal of 1679625 is 5269761.

It can be written as a sum of positive squares in 4 ways, for example, as 9 + 1679616 = 3^2 + 1296^2 .

It is not a de Polignac number, because 1679625 - 2⁴ = 1679609 is a prime.

It is a super-2 number, since 2×1679625² = 5642280281250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1679625.

It is not an unprimeable number, because it can be changed into a prime (1679627) 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, 379 + ... + 1871.

It is an arithmetic number, because the mean of its divisors is an integer number (126243).

2^1679625 is an apocalyptic number.

1679625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1679625 is a deficient number, since it is larger than the sum of its proper divisors (1350207).

1679625 is a wasteful number, since it uses less digits than its factorization.

1679625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 1501 counting only the distinct ones).

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

The square root of 1679625 is about 1296.0034722176. The cubic root of 1679625 is about 118.8695932751.

It can be divided in two parts, 1679 and 625, that added together give a square (2304 = 48²).

The spelling of 1679625 in words is "one million, six hundred seventy-nine thousand, six hundred twenty-five".