84907072 has 14 divisors (see below), whose sum is σ = 168487598. Its totient is φ = 42453504.

The previous prime is 84907049. The next prime is 84907079. The reversal of 84907072 is 27070948.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 81432576 + 3474496 = 9024^2 + 1864^2 .

It is a super-2 number, since 2×84907072² = 14418421751226368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84907079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663273 + ... + 663400.

Almost surely, 2^84907072 is an apocalyptic number.

It is an amenable number.

84907072 is a deficient number, since it is larger than the sum of its proper divisors (83580526).

84907072 is a wasteful number, since it uses less digits than its factorization.

84907072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326685 (or 1326675 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 84907072 is about 9214.5033506967. The cubic root of 84907072 is about 439.5226779697.

The spelling of 84907072 in words is "eighty-four million, nine hundred seven thousand, seventy-two".