84913870 has 32 divisors (see below), whose sum is σ = 158832576. Its totient is φ = 32659200.

The previous prime is 84913859. The next prime is 84913903. The reversal of 84913870 is 7831948.

84913870 = 2051² + 2052² + ... + 2070².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27652 + ... + 30568.

It is an arithmetic number, because the mean of its divisors is an integer number (4963518).

Almost surely, 2^84913870 is an apocalyptic number.

84913870 is a deficient number, since it is larger than the sum of its proper divisors (73918706).

84913870 is a wasteful number, since it uses less digits than its factorization.

84913870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 84913870 is about 9214.8722183219. The cubic root of 84913870 is about 439.5344076382.

The spelling of 84913870 in words is "eighty-four million, nine hundred thirteen thousand, eight hundred seventy".