84978052 has 12 divisors (see below), whose sum is σ = 149534476. Its totient is φ = 42253920.

The previous prime is 84977999. The next prime is 84978071. The reversal of 84978052 is 25087948.

It can be written as a sum of positive squares in 2 ways, for example, as 18783556 + 66194496 = 4334^2 + 8136^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57963 + ... + 59410.

Almost surely, 2^84978052 is an apocalyptic number.

It is an amenable number.

84978052 is a deficient number, since it is larger than the sum of its proper divisors (64556424).

84978052 is a wasteful number, since it uses less digits than its factorization.

84978052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117558 (or 117556 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 84978052 is about 9218.3540830237. The cubic root of 84978052 is about 439.6451201865.

The spelling of 84978052 in words is "eighty-four million, nine hundred seventy-eight thousand, fifty-two".