84537231 has 16 divisors (see below), whose sum is σ = 113899104. Its totient is φ = 55770624.

The previous prime is 84537191. The next prime is 84537253. The reversal of 84537231 is 13273548.

It is a de Polignac number, because none of the positive numbers 2^k-84537231 is a prime.

It is a super-2 number, since 2×84537231² = 14293086850294722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84537192 and 84537201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84537331) 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, 184755 + ... + 185211.

It is an arithmetic number, because the mean of its divisors is an integer number (7118694).

Almost surely, 2^84537231 is an apocalyptic number.

84537231 is a deficient number, since it is larger than the sum of its proper divisors (29361873).

84537231 is a wasteful number, since it uses less digits than its factorization.

84537231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970.

The product of its digits is 20160, while the sum is 33.

The square root of 84537231 is about 9194.4130318362. The cubic root of 84537231 is about 438.8835867282.

The spelling of 84537231 in words is "eighty-four million, five hundred thirty-seven thousand, two hundred thirty-one".