84856913 has 8 divisors (see below), whose sum is σ = 88941888. Its totient is φ = 80804944.

The previous prime is 84856903. The next prime is 84856939. The reversal of 84856913 is 31965848.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84856913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84856903) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2906 + ... + 13347.

It is an arithmetic number, because the mean of its divisors is an integer number (11117736).

Almost surely, 2^84856913 is an apocalyptic number.

It is an amenable number.

84856913 is a deficient number, since it is larger than the sum of its proper divisors (4084975).

84856913 is a wasteful number, since it uses less digits than its factorization.

84856913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16503.

The product of its digits is 207360, while the sum is 44.

The square root of 84856913 is about 9211.7812066940. The cubic root of 84856913 is about 439.4361113263.

The spelling of 84856913 in words is "eighty-four million, eight hundred fifty-six thousand, nine hundred thirteen".