615628 has 12 divisors (see below), whose sum is σ = 1160320. Its totient is φ = 284112.

The previous prime is 615623. The next prime is 615661. The reversal of 615628 is 826516.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 615596 and 615605.

It is not an unprimeable number, because it can be changed into a prime (615623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5868 + ... + 5971.

2⁶¹⁵⁶²⁸ is an apocalyptic number.

It is an amenable number.

615628 is a deficient number, since it is larger than the sum of its proper divisors (544692).

615628 is a wasteful number, since it uses less digits than its factorization.

615628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11856 (or 11854 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 615628 is about 784.6196530804. The cubic root of 615628 is about 85.0692860680.

The spelling of 615628 in words is "six hundred fifteen thousand, six hundred twenty-eight".