85976999 has 4 divisors (see below), whose sum is σ = 87386520. Its totient is φ = 84567480.

The previous prime is 85976993. The next prime is 85977029. The reversal of 85976999 is 99967958.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85976999 - 2²⁴ = 69199783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85976993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704669 + ... + 704790.

It is an arithmetic number, because the mean of its divisors is an integer number (21846630).

Almost surely, 2^85976999 is an apocalyptic number.

85976999 is a deficient number, since it is larger than the sum of its proper divisors (1409521).

85976999 is a wasteful number, since it uses less digits than its factorization.

85976999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409520.

The product of its digits is 11022480, while the sum is 62.

The square root of 85976999 is about 9272.3782817571. The cubic root of 85976999 is about 441.3611413680.

The spelling of 85976999 in words is "eighty-five million, nine hundred seventy-six thousand, nine hundred ninety-nine".