77055272 has 16 divisors (see below), whose sum is σ = 165118560. Its totient is φ = 33023664.

The previous prime is 77055263. The next prime is 77055281. The reversal of 77055272 is 27255077.

It is an interprime number because it is at equal distance from previous prime (77055263) and next prime (77055281).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687938 + ... + 688049.

It is an arithmetic number, because the mean of its divisors is an integer number (10319910).

Almost surely, 2^77055272 is an apocalyptic number.

It is an amenable number.

77055272 is an abundant number, since it is smaller than the sum of its proper divisors (88063288).

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

77055272 is a wasteful number, since it uses less digits than its factorization.

77055272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376000 (or 1375996 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 77055272 is about 8778.1132369092. The cubic root of 77055272 is about 425.5338564602.

The spelling of 77055272 in words is "seventy-seven million, fifty-five thousand, two hundred seventy-two".