772053893 has 4 divisors (see below), whose sum is σ = 831442668. Its totient is φ = 712665120.

The previous prime is 772053883. The next prime is 772053911. The reversal of 772053893 is 398350277.

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

It can be written as a sum of positive squares in 2 ways, for example, as 105226564 + 666827329 = 10258^2 + 25823^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-772053893 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 (772053883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29694368 + ... + 29694393.

It is an arithmetic number, because the mean of its divisors is an integer number (207860667).

Almost surely, 2^772053893 is an apocalyptic number.

It is an amenable number.

772053893 is a deficient number, since it is larger than the sum of its proper divisors (59388775).

772053893 is a wasteful number, since it uses less digits than its factorization.

772053893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59388774.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 772053893 is about 27785.8577877308. The cubic root of 772053893 is about 917.3798689937.

The spelling of 772053893 in words is "seven hundred seventy-two million, fifty-three thousand, eight hundred ninety-three".