77072052 has 24 divisors (see below), whose sum is σ = 180044032. Its totient is φ = 25660800.

The previous prime is 77071957. The next prime is 77072059. The reversal of 77072052 is 25027077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77072059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8652 + ... + 15132.

Almost surely, 2^77072052 is an apocalyptic number.

It is an amenable number.

77072052 is an abundant number, since it is smaller than the sum of its proper divisors (102971980).

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

77072052 is a wasteful number, since it uses less digits than its factorization.

77072052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479 (or 7477 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 30.

The square root of 77072052 is about 8779.0689711381. The cubic root of 77072052 is about 425.5647431198.

The spelling of 77072052 in words is "seventy-seven million, seventy-two thousand, fifty-two".