84967631 has 8 divisors (see below), whose sum is σ = 97365120. Its totient is φ = 72634968.

The previous prime is 84967609. The next prime is 84967643. The reversal of 84967631 is 13676948.

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

It is not a de Polignac number, because 84967631 - 2⁶ = 84967567 is a prime.

It is a super-2 number, since 2×84967631² = 14438996635504322, 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 (84967661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13361 + ... + 18666.

It is an arithmetic number, because the mean of its divisors is an integer number (12170640).

Almost surely, 2^84967631 is an apocalyptic number.

84967631 is a deficient number, since it is larger than the sum of its proper divisors (12397489).

84967631 is a wasteful number, since it uses less digits than its factorization.

84967631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32413.

The product of its digits is 217728, while the sum is 44.

The square root of 84967631 is about 9217.7888346392. The cubic root of 84967631 is about 439.6271479808.

The spelling of 84967631 in words is "eighty-four million, nine hundred sixty-seven thousand, six hundred thirty-one".