770990625 has 72 divisors (see below), whose sum is σ = 1413659520. Its totient is φ = 404820000.

The previous prime is 770990617. The next prime is 770990663. The reversal of 770990625 is 526099077.

It is not a de Polignac number, because 770990625 - 2³ = 770990617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2221702 + ... + 2222048.

It is an arithmetic number, because the mean of its divisors is an integer number (19634160).

Almost surely, 2^770990625 is an apocalyptic number.

770990625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

770990625 is a deficient number, since it is larger than the sum of its proper divisors (642668895).

770990625 is an equidigital number, since it uses as much as digits as its factorization.

770990625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 770990625 is about 27766.7179371275. The cubic root of 770990625 is about 916.9585388286.

The spelling of 770990625 in words is "seven hundred seventy million, nine hundred ninety thousand, six hundred twenty-five".