616925 has 6 divisors (see below), whose sum is σ = 765018. Its totient is φ = 493520.

The previous prime is 616909. The next prime is 616933. The reversal of 616925 is 529616.

It can be written as a sum of positive squares in 3 ways, for example, as 114244 + 502681 = 338^2 + 709^2 .

It is not a de Polignac number, because 616925 - 2⁴ = 616909 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12314 + ... + 12363.

It is an arithmetic number, because the mean of its divisors is an integer number (127503).

2⁶¹⁶⁹²⁵ is an apocalyptic number.

It is an amenable number.

616925 is a deficient number, since it is larger than the sum of its proper divisors (148093).

616925 is a wasteful number, since it uses less digits than its factorization.

616925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24687 (or 24682 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 616925 is about 785.4457333260. The cubic root of 616925 is about 85.1289852535.

The spelling of 616925 in words is "six hundred sixteen thousand, nine hundred twenty-five".