84690472 has 8 divisors (see below), whose sum is σ = 158794650. Its totient is φ = 42345232.

The previous prime is 84690451. The next prime is 84690499. The reversal of 84690472 is 27409648.

It can be written as a sum of positive squares in only one way, i.e., 83283876 + 1406596 = 9126^2 + 1186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5293147 + ... + 5293162.

Almost surely, 2^84690472 is an apocalyptic number.

It is an amenable number.

84690472 is a deficient number, since it is larger than the sum of its proper divisors (74104178).

84690472 is a wasteful number, since it uses less digits than its factorization.

84690472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10586315 (or 10586311 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 84690472 is about 9202.7426346715. The cubic root of 84690472 is about 439.1486153710.

The spelling of 84690472 in words is "eighty-four million, six hundred ninety thousand, four hundred seventy-two".