84672231 has 16 divisors (see below), whose sum is σ = 129159168. Its totient is φ = 48333600.

The previous prime is 84672221. The next prime is 84672233. The reversal of 84672231 is 13227648.

It is not a de Polignac number, because 84672231 - 2⁶ = 84672167 is a prime.

It is a super-2 number, since 2×84672231² = 14338773405034722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84672192 and 84672201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84672233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29521 + ... + 32261.

It is an arithmetic number, because the mean of its divisors is an integer number (8072448).

Almost surely, 2^84672231 is an apocalyptic number.

84672231 is a deficient number, since it is larger than the sum of its proper divisors (44486937).

84672231 is a wasteful number, since it uses less digits than its factorization.

84672231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222.

The product of its digits is 16128, while the sum is 33.

The square root of 84672231 is about 9201.7515180535. The cubic root of 84672231 is about 439.1170845314.

Adding to 84672231 its reverse (13227648), we get a palindrome (97899879).

The spelling of 84672231 in words is "eighty-four million, six hundred seventy-two thousand, two hundred thirty-one".