84064975 has 18 divisors (see below), whose sum is σ = 105855576. Its totient is φ = 66225600.

The previous prime is 84064951. The next prime is 84064993. The reversal of 84064975 is 57946048.

It is not a de Polignac number, because 84064975 - 2¹⁹ = 83540687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 132910 + ... + 133540.

Almost surely, 2^84064975 is an apocalyptic number.

84064975 is a deficient number, since it is larger than the sum of its proper divisors (21790601).

84064975 is an equidigital number, since it uses as much as digits as its factorization.

84064975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 84064975 is about 9168.6953815687. The cubic root of 84064975 is about 438.0648052259.

The spelling of 84064975 in words is "eighty-four million, sixty-four thousand, nine hundred seventy-five".