612057831 has 64 divisors (see below), whose sum is σ = 1060110336. Its totient is φ = 304819200.

The previous prime is 612057683. The next prime is 612057863. The reversal of 612057831 is 138750216.

It is not a de Polignac number, because 612057831 - 2²¹ = 609960679 is a prime.

It is a super-2 number, since 2×612057831² = 749229576976849122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 612057792 and 612057801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612057871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 909111 + ... + 909783.

It is an arithmetic number, because the mean of its divisors is an integer number (16564224).

Almost surely, 2^612057831 is an apocalyptic number.

612057831 is a deficient number, since it is larger than the sum of its proper divisors (448052505).

612057831 is a wasteful number, since it uses less digits than its factorization.

612057831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 612057831 is about 24739.8025659058. The cubic root of 612057831 is about 849.0452167299.

The spelling of 612057831 in words is "six hundred twelve million, fifty-seven thousand, eight hundred thirty-one".