612608831 has 6 divisors (see below), whose sum is σ = 627188760. Its totient is φ = 598360308.

The previous prime is 612608813. The next prime is 612608861. The reversal of 612608831 is 138806216.

It is not a de Polignac number, because 612608831 - 2⁶ = 612608767 is a prime.

It is a super-2 number, since 2×612608831² = 750579159638373122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612608791 and 612608800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612608861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163811 + ... + 167508.

It is an arithmetic number, because the mean of its divisors is an integer number (104531460).

Almost surely, 2^612608831 is an apocalyptic number.

612608831 is a deficient number, since it is larger than the sum of its proper divisors (14579929).

612608831 is an equidigital number, since it uses as much as digits as its factorization.

612608831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331405 (or 331362 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 612608831 is about 24750.9359621005. The cubic root of 612608831 is about 849.2999222910.

The spelling of 612608831 in words is "six hundred twelve million, six hundred eight thousand, eight hundred thirty-one".