770825580 has 48 divisors (see below), whose sum is σ = 2466643200. Its totient is φ = 176188608.

The previous prime is 770825563. The next prime is 770825581. The reversal of 770825580 is 85528077.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (770825581) 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 15 ways as a sum of consecutive naturals, for example, 917230 + ... + 918069.

It is an arithmetic number, because the mean of its divisors is an integer number (51388400).

Almost surely, 2^770825580 is an apocalyptic number.

770825580 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

770825580 is an abundant number, since it is smaller than the sum of its proper divisors (1695817620).

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

770825580 is a wasteful number, since it uses less digits than its factorization.

770825580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835318 (or 1835316 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 770825580 is about 27763.7457847460. The cubic root of 770825580 is about 916.8931034361.

The spelling of 770825580 in words is "seven hundred seventy million, eight hundred twenty-five thousand, five hundred eighty".