77250912 has 24 divisors (see below), whose sum is σ = 202783896. Its totient is φ = 25750272.

The previous prime is 77250889. The next prime is 77250913. The reversal of 77250912 is 21905277.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77250913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402253 + ... + 402444.

It is an arithmetic number, because the mean of its divisors is an integer number (8449329).

Almost surely, 2^77250912 is an apocalyptic number.

It is an amenable number.

77250912 is an abundant number, since it is smaller than the sum of its proper divisors (125532984).

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

77250912 is a wasteful number, since it uses less digits than its factorization.

77250912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804710 (or 804702 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 77250912 is about 8789.2497973377. The cubic root of 77250912 is about 425.8936894453.

The spelling of 77250912 in words is "seventy-seven million, two hundred fifty thousand, nine hundred twelve".