77700940 has 12 divisors (see below), whose sum is σ = 163172016. Its totient is φ = 31080368.

The previous prime is 77700913. The next prime is 77700941. The reversal of 77700940 is 4900777.

It is a junction number, because it is equal to n+sod(n) for n = 77700896 and 77700905.

It is not an unprimeable number, because it can be changed into a prime (77700941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1942504 + ... + 1942543.

It is an arithmetic number, because the mean of its divisors is an integer number (13597668).

Almost surely, 2^77700940 is an apocalyptic number.

It is an amenable number.

77700940 is an abundant number, since it is smaller than the sum of its proper divisors (85471076).

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

77700940 is a wasteful number, since it uses less digits than its factorization.

77700940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885056 (or 3885054 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 77700940 is about 8814.8136679115. The cubic root of 77700940 is about 426.7191084087.

The spelling of 77700940 in words is "seventy-seven million, seven hundred thousand, nine hundred forty".