84872890 has 16 divisors (see below), whose sum is σ = 152990208. Its totient is φ = 33900496.

The previous prime is 84872873. The next prime is 84872923. The reversal of 84872890 is 9827848.

It is a self number, because there is not a number n which added to its sum of digits gives 84872890.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719 + ... + 13141.

It is an arithmetic number, because the mean of its divisors is an integer number (9561888).

Almost surely, 2^84872890 is an apocalyptic number.

84872890 is a deficient number, since it is larger than the sum of its proper divisors (68117318).

84872890 is a wasteful number, since it uses less digits than its factorization.

84872890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12173.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 84872890 is about 9212.6483705827. The cubic root of 84872890 is about 439.4636888483.

The spelling of 84872890 in words is "eighty-four million, eight hundred seventy-two thousand, eight hundred ninety".