84853631 has 4 divisors (see below), whose sum is σ = 84920352. Its totient is φ = 84786912.

The previous prime is 84853627. The next prime is 84853649. The reversal of 84853631 is 13635848.

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 84853631 - 2² = 84853627 is a prime.

It is a super-2 number, since 2×84853631² = 14400277387768322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84853331) 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, 31415 + ... + 34008.

It is an arithmetic number, because the mean of its divisors is an integer number (21230088).

Almost surely, 2^84853631 is an apocalyptic number.

84853631 is a deficient number, since it is larger than the sum of its proper divisors (66721).

84853631 is a wasteful number, since it uses less digits than its factorization.

84853631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66720.

The product of its digits is 69120, while the sum is 38.

The square root of 84853631 is about 9211.6030635281. The cubic root of 84853631 is about 439.4304459151.

The spelling of 84853631 in words is "eighty-four million, eight hundred fifty-three thousand, six hundred thirty-one".