84077992 has 16 divisors (see below), whose sum is σ = 157852800. Its totient is φ = 41983920.

The previous prime is 84077977. The next prime is 84077999. The reversal of 84077992 is 29977048.

It is not an unprimeable number, because it can be changed into a prime (84077999) 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, 9 + ... + 12967.

It is an arithmetic number, because the mean of its divisors is an integer number (9865800).

Almost surely, 2^84077992 is an apocalyptic number.

It is an amenable number.

84077992 is a deficient number, since it is larger than the sum of its proper divisors (73774808).

84077992 is a wasteful number, since it uses less digits than its factorization.

84077992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13776 (or 13772 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 84077992 is about 9169.4052151707. The cubic root of 84077992 is about 438.0874147026.

The spelling of 84077992 in words is "eighty-four million, seventy-seven thousand, nine hundred ninety-two".