84045975 has 24 divisors (see below), whose sum is σ = 149646672. Its totient is φ = 41376000.

The previous prime is 84045961. The next prime is 84045989. The reversal of 84045975 is 57954048.

It is an interprime number because it is at equal distance from previous prime (84045961) and next prime (84045989).

It is not a de Polignac number, because 84045975 - 2⁴ = 84045959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42126 + ... + 44075.

It is an arithmetic number, because the mean of its divisors is an integer number (6235278).

Almost surely, 2^84045975 is an apocalyptic number.

84045975 is a deficient number, since it is larger than the sum of its proper divisors (65600697).

84045975 is a wasteful number, since it uses less digits than its factorization.

84045975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86227 (or 86222 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 84045975 is about 9167.6591886915. The cubic root of 84045975 is about 438.0317995719.

The spelling of 84045975 in words is "eighty-four million, forty-five thousand, nine hundred seventy-five".