84979995 has 16 divisors (see below), whose sum is σ = 138862080. Its totient is φ = 44357984.

The previous prime is 84979987. The next prime is 84980029. The reversal of 84979995 is 59997948.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 84979995 - 2³ = 84979987 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 59565 + ... + 60974.

It is an arithmetic number, because the mean of its divisors is an integer number (8678880).

Almost surely, 2^84979995 is an apocalyptic number.

84979995 is a deficient number, since it is larger than the sum of its proper divisors (53882085).

84979995 is a wasteful number, since it uses less digits than its factorization.

84979995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120594.

The product of its digits is 7348320, while the sum is 60.

The square root of 84979995 is about 9218.4594699982. The cubic root of 84979995 is about 439.6484709496.

The spelling of 84979995 in words is "eighty-four million, nine hundred seventy-nine thousand, nine hundred ninety-five".