84812231 has 8 divisors (see below), whose sum is σ = 99292704. Its totient is φ = 70922880.

The previous prime is 84812197. The next prime is 84812239. The reversal of 84812231 is 13221848.

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

It is a de Polignac number, because none of the positive numbers 2^k-84812231 is a prime.

It is a super-2 number, since 2×84812231² = 14386229054394722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84812194 and 84812203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84812239) 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, 147470 + ... + 148043.

It is an arithmetic number, because the mean of its divisors is an integer number (12411588).

Almost surely, 2^84812231 is an apocalyptic number.

84812231 is a deficient number, since it is larger than the sum of its proper divisors (14480473).

84812231 is a wasteful number, since it uses less digits than its factorization.

84812231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295561.

The product of its digits is 3072, while the sum is 29.

The square root of 84812231 is about 9209.3556234951. The cubic root of 84812231 is about 439.3589684005.

The spelling of 84812231 in words is "eighty-four million, eight hundred twelve thousand, two hundred thirty-one".