77252064 has 24 divisors (see below), whose sum is σ = 202786920. Its totient is φ = 25750656.

The previous prime is 77252039. The next prime is 77252083. The reversal of 77252064 is 46025277.

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

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 402259 + ... + 402450.

It is an arithmetic number, because the mean of its divisors is an integer number (8449455).

Almost surely, 2^77252064 is an apocalyptic number.

It is an amenable number.

77252064 is an abundant number, since it is smaller than the sum of its proper divisors (125534856).

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

77252064 is a wasteful number, since it uses less digits than its factorization.

77252064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804722 (or 804714 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 77252064 is about 8789.3153316968. The cubic root of 77252064 is about 425.8958064736.

The spelling of 77252064 in words is "seventy-seven million, two hundred fifty-two thousand, sixty-four".