616313631 has 8 divisors (see below), whose sum is σ = 870089904. Its totient is φ = 386706560.

The previous prime is 616313611. The next prime is 616313651. The reversal of 616313631 is 136313616.

It is an interprime number because it is at equal distance from previous prime (616313611) and next prime (616313651).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616313631 - 2⁹ = 616313119 is a prime.

It is a super-2 number, since 2×616313631² = 759684983512808322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616313611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6042240 + ... + 6042341.

It is an arithmetic number, because the mean of its divisors is an integer number (108761238).

Almost surely, 2^616313631 is an apocalyptic number.

616313631 is a deficient number, since it is larger than the sum of its proper divisors (253776273).

616313631 is a wasteful number, since it uses less digits than its factorization.

616313631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12084601.

The product of its digits is 5832, while the sum is 30.

The square root of 616313631 is about 24825.6647645134. The cubic root of 616313631 is about 851.0085518676.

The spelling of 616313631 in words is "six hundred sixteen million, three hundred thirteen thousand, six hundred thirty-one".