608939657 has 4 divisors (see below), whose sum is σ = 609306180. Its totient is φ = 608573136.

The previous prime is 608939629. The next prime is 608939689. The reversal of 608939657 is 756939806.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 391406656 + 217533001 = 19784^2 + 14749^2 .

It is a cyclic number.

It is not a de Polignac number, because 608939657 - 2¹⁶ = 608874121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 608939599 and 608939608.

It is not an unprimeable number, because it can be changed into a prime (608939627) 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, 180758 + ... + 184095.

It is an arithmetic number, because the mean of its divisors is an integer number (152326545).

Almost surely, 2^608939657 is an apocalyptic number.

It is an amenable number.

608939657 is a deficient number, since it is larger than the sum of its proper divisors (366523).

608939657 is a wasteful number, since it uses less digits than its factorization.

608939657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366522.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 608939657 is about 24676.7027173405. The cubic root of 608939657 is about 847.6009199846.

The spelling of 608939657 in words is "six hundred eight million, nine hundred thirty-nine thousand, six hundred fifty-seven".