84720968 has 16 divisors (see below), whose sum is σ = 159865980. Its totient is φ = 42090048.

The previous prime is 84720967. The next prime is 84720971. The reversal of 84720968 is 86902748.

It can be written as a sum of positive squares in 2 ways, for example, as 72624484 + 12096484 = 8522^2 + 3478^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (84720967) 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, 32471 + ... + 34982.

Almost surely, 2^84720968 is an apocalyptic number.

It is an amenable number.

84720968 is a deficient number, since it is larger than the sum of its proper divisors (75145012).

84720968 is a wasteful number, since it uses less digits than its factorization.

84720968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67616 (or 67612 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 84720968 is about 9204.3993829038. The cubic root of 84720968 is about 439.2013197218.

The spelling of 84720968 in words is "eighty-four million, seven hundred twenty thousand, nine hundred sixty-eight".