84012972 has 24 divisors (see below), whose sum is σ = 196407792. Its totient is φ = 27950400.

The previous prime is 84012967. The next prime is 84012989. The reversal of 84012972 is 27921048.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22 + ... + 12962.

It is an arithmetic number, because the mean of its divisors is an integer number (8183658).

Almost surely, 2^84012972 is an apocalyptic number.

It is an amenable number.

84012972 is an abundant number, since it is smaller than the sum of its proper divisors (112394820).

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

84012972 is a wasteful number, since it uses less digits than its factorization.

84012972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13489 (or 13487 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 84012972 is about 9165.8590432103. The cubic root of 84012972 is about 437.9744569245.

The spelling of 84012972 in words is "eighty-four million, twelve thousand, nine hundred seventy-two".