772540927 has 4 divisors (see below), whose sum is σ = 788978016. Its totient is φ = 756103840.

The previous prime is 772540919. The next prime is 772540939. The reversal of 772540927 is 729045277.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 772540927 - 2³ = 772540919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772550927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8218474 + ... + 8218567.

It is an arithmetic number, because the mean of its divisors is an integer number (197244504).

Almost surely, 2^772540927 is an apocalyptic number.

772540927 is a deficient number, since it is larger than the sum of its proper divisors (16437089).

772540927 is a wasteful number, since it uses less digits than its factorization.

772540927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16437088.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 772540927 is about 27794.6204687166. The cubic root of 772540927 is about 917.5727317258.

The spelling of 772540927 in words is "seven hundred seventy-two million, five hundred forty thousand, nine hundred twenty-seven".