776890725 has 48 divisors (see below), whose sum is σ = 1386411264. Its totient is φ = 381600000.

The previous prime is 776890717. The next prime is 776890811. The reversal of 776890725 is 527098677.

776890725 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 776890725 - 2³ = 776890717 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 731695 + ... + 732755.

It is an arithmetic number, because the mean of its divisors is an integer number (28883568).

Almost surely, 2^776890725 is an apocalyptic number.

776890725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

776890725 is a deficient number, since it is larger than the sum of its proper divisors (609520539).

776890725 is a wasteful number, since it uses less digits than its factorization.

776890725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 51.

The square root of 776890725 is about 27872.7595512177. The cubic root of 776890725 is about 919.2916432231.

The spelling of 776890725 in words is "seven hundred seventy-six million, eight hundred ninety thousand, seven hundred twenty-five".