612280791 has 12 divisors (see below), whose sum is σ = 895062168. Its totient is φ = 403268784.

The previous prime is 612280787. The next prime is 612280817. The reversal of 612280791 is 197082216.

It is not a de Polignac number, because 612280791 - 2² = 612280787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612280391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409080 + ... + 410573.

It is an arithmetic number, because the mean of its divisors is an integer number (74588514).

Almost surely, 2^612280791 is an apocalyptic number.

612280791 is a deficient number, since it is larger than the sum of its proper divisors (282781377).

612280791 is a wasteful number, since it uses less digits than its factorization.

612280791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819742 (or 819739 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 612280791 is about 24744.3082546270. The cubic root of 612280791 is about 849.1483007470.

The spelling of 612280791 in words is "six hundred twelve million, two hundred eighty thousand, seven hundred ninety-one".