84997707 has 8 divisors (see below), whose sum is σ = 113454480. Its totient is φ = 56603040.

The previous prime is 84997699. The next prime is 84997709. The reversal of 84997707 is 70779948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84997707 - 2³ = 84997699 is a prime.

It is a super-2 number, since 2×84997707² = 14449220390515698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84997707.

It is not an unprimeable number, because it can be changed into a prime (84997709) 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 7 ways as a sum of consecutive naturals, for example, 12232 + ... + 17877.

It is an arithmetic number, because the mean of its divisors is an integer number (14181810).

Almost surely, 2^84997707 is an apocalyptic number.

84997707 is a deficient number, since it is larger than the sum of its proper divisors (28456773).

84997707 is a wasteful number, since it uses less digits than its factorization.

84997707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31053.

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 84997707 is about 9219.4201010693. The cubic root of 84997707 is about 439.6790134821.

The spelling of 84997707 in words is "eighty-four million, nine hundred ninety-seven thousand, seven hundred seven".