77984652 has 12 divisors (see below), whose sum is σ = 181964216. Its totient is φ = 25994880.

The previous prime is 77984597. The next prime is 77984653. The reversal of 77984652 is 25648977.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×77984652² = 12163211895122208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77984653) 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, 3249349 + ... + 3249372.

Almost surely, 2^77984652 is an apocalyptic number.

It is an amenable number.

77984652 is an abundant number, since it is smaller than the sum of its proper divisors (103979564).

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

77984652 is a wasteful number, since it uses less digits than its factorization.

77984652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498728 (or 6498726 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 77984652 is about 8830.8919141840. The cubic root of 77984652 is about 427.2378420727.

The spelling of 77984652 in words is "seventy-seven million, nine hundred eighty-four thousand, six hundred fifty-two".