610730631 has 16 divisors (see below), whose sum is σ = 1034041600. Its totient is φ = 348988824.

The previous prime is 610730599. The next prime is 610730639. The reversal of 610730631 is 136037016.

It is not a de Polignac number, because 610730631 - 2⁵ = 610730599 is a prime.

It is a super-2 number, since 2×610730631² = 745983807283316322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 610730595 and 610730604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610730639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1615501 + ... + 1615878.

It is an arithmetic number, because the mean of its divisors is an integer number (64627600).

Almost surely, 2^610730631 is an apocalyptic number.

610730631 is a deficient number, since it is larger than the sum of its proper divisors (423310969).

610730631 is a wasteful number, since it uses less digits than its factorization.

610730631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231395 (or 3231389 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 610730631 is about 24712.9648362959. The cubic root of 610730631 is about 848.4310763471.

Adding to 610730631 its reverse (136037016), we get a palindrome (746767647).

The spelling of 610730631 in words is "six hundred ten million, seven hundred thirty thousand, six hundred thirty-one".