1612688 has 90 divisors (see below), whose sum is σ = 4230198. Its totient is φ = 591360.

The previous prime is 1612679. The next prime is 1612693. The reversal of 1612688 is 8862161.

It can be written as a sum of positive squares in only one way, i.e., 1517824 + 94864 = 1232^2 + 308^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 94856 + ... + 94872.

2^1612688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1612688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115099).

1612688 is an abundant number, since it is smaller than the sum of its proper divisors (2617510).

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

1612688 is a wasteful number, since it uses less digits than its factorization.

1612688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 37 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 1612688 is about 1269.9165326902. The cubic root of 1612688 is about 117.2690620230.

The spelling of 1612688 in words is "one million, six hundred twelve thousand, six hundred eighty-eight".