772981392 has 20 divisors (see below), whose sum is σ = 1996868720. Its totient is φ = 257660448.

The previous prime is 772981387. The next prime is 772981403. The reversal of 772981392 is 293189277.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 16103779 = 772981392 / (7 + 7 + 2 + 9 + 8 + 1 + 3 + 9 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8051842 + ... + 8051937.

It is an arithmetic number, because the mean of its divisors is an integer number (99843436).

Almost surely, 2^772981392 is an apocalyptic number.

It is an amenable number.

772981392 is an abundant number, since it is smaller than the sum of its proper divisors (1223887328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

772981392 is a wasteful number, since it uses less digits than its factorization.

772981392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16103790 (or 16103784 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 772981392 is about 27802.5429052812. The cubic root of 772981392 is about 917.7470836050.

The spelling of 772981392 in words is "seven hundred seventy-two million, nine hundred eighty-one thousand, three hundred ninety-two".