84973515 has 32 divisors (see below), whose sum is σ = 149734656. Its totient is φ = 40805760.

The previous prime is 84973501. The next prime is 84973519. The reversal of 84973515 is 51537948.

It is not a de Polignac number, because 84973515 - 2¹⁹ = 84449227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84973519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15249 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (4679208).

Almost surely, 2^84973515 is an apocalyptic number.

84973515 is a deficient number, since it is larger than the sum of its proper divisors (64761141).

84973515 is a wasteful number, since it uses less digits than its factorization.

84973515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939.

The product of its digits is 151200, while the sum is 42.

The square root of 84973515 is about 9218.1079945941. The cubic root of 84973515 is about 439.6372957920.

The spelling of 84973515 in words is "eighty-four million, nine hundred seventy-three thousand, five hundred fifteen".