772906879 has 4 divisors (see below), whose sum is σ = 772993120. Its totient is φ = 772820640.

The previous prime is 772906877. The next prime is 772906889. The reversal of 772906879 is 978609277.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 772906879 - 2¹ = 772906877 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 (772906877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27882 + ... + 48199.

It is an arithmetic number, because the mean of its divisors is an integer number (193248280).

Almost surely, 2^772906879 is an apocalyptic number.

772906879 is a deficient number, since it is larger than the sum of its proper divisors (86241).

772906879 is a wasteful number, since it uses less digits than its factorization.

772906879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86240.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The square root of 772906879 is about 27801.2028336905. The cubic root of 772906879 is about 917.7175933367.

The spelling of 772906879 in words is "seven hundred seventy-two million, nine hundred six thousand, eight hundred seventy-nine".