84806031 has 4 divisors (see below), whose sum is σ = 113074712. Its totient is φ = 56537352.

The previous prime is 84806009. The next prime is 84806041. The reversal of 84806031 is 13060848.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84806031 - 2⁶ = 84805967 is a prime.

It is a super-2 number, since 2×84806031² = 14384125787945922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84806031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84806041) 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, 14134336 + ... + 14134341.

It is an arithmetic number, because the mean of its divisors is an integer number (28268678).

Almost surely, 2^84806031 is an apocalyptic number.

84806031 is a deficient number, since it is larger than the sum of its proper divisors (28268681).

84806031 is a wasteful number, since it uses less digits than its factorization.

84806031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28268680.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 84806031 is about 9209.0190031295. The cubic root of 84806031 is about 439.3482620360.

Adding to 84806031 its reverse (13060848), we get a palindrome (97866879).

The spelling of 84806031 in words is "eighty-four million, eight hundred six thousand, thirty-one".