772129923 has 8 divisors (see below), whose sum is σ = 1083691200. Its totient is φ = 487660968.

The previous prime is 772129903. The next prime is 772129931. The reversal of 772129923 is 329921277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 772129923 - 2⁹ = 772129411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (772129903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6773013 + ... + 6773126.

It is an arithmetic number, because the mean of its divisors is an integer number (135461400).

Almost surely, 2^772129923 is an apocalyptic number.

772129923 is a deficient number, since it is larger than the sum of its proper divisors (311561277).

772129923 is a wasteful number, since it uses less digits than its factorization.

772129923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13546161.

The product of its digits is 95256, while the sum is 42.

The square root of 772129923 is about 27787.2258960840. The cubic root of 772129923 is about 917.4099817887.

The spelling of 772129923 in words is "seven hundred seventy-two million, one hundred twenty-nine thousand, nine hundred twenty-three".