772847880 has 128 divisors (see below), whose sum is σ = 2805684480. Its totient is φ = 166256640.

The previous prime is 772847879. The next prime is 772847891. The reversal of 772847880 is 88748277.

It is a Harshad number since it is a multiple of its sum of digits (51).

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 31 ways as a sum of consecutive naturals, for example, 12781 + ... + 41340.

It is an arithmetic number, because the mean of its divisors is an integer number (21919410).

Almost surely, 2^772847880 is an apocalyptic number.

772847880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

772847880 is an abundant number, since it is smaller than the sum of its proper divisors (2032836600).

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

772847880 is a wasteful number, since it uses less digits than its factorization.

772847880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54159 (or 54155 counting only the distinct ones).

The product of its (nonzero) digits is 1404928, while the sum is 51.

The square root of 772847880 is about 27800.1417262574. The cubic root of 772847880 is about 917.6942417535.

The spelling of 772847880 in words is "seven hundred seventy-two million, eight hundred forty-seven thousand, eight hundred eighty".