82567231 has 8 divisors (see below), whose sum is σ = 83335824. Its totient is φ = 81802560.

The previous prime is 82567223. The next prime is 82567241. The reversal of 82567231 is 13276528.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 82567231 - 2³ = 82567223 is a prime.

It is a super-2 number, since 2×82567231² = 13634695270014722, 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 (82567241) 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, 55011 + ... + 56491.

It is an arithmetic number, because the mean of its divisors is an integer number (10416978).

Almost surely, 2^82567231 is an apocalyptic number.

82567231 is a deficient number, since it is larger than the sum of its proper divisors (768593).

82567231 is a wasteful number, since it uses less digits than its factorization.

82567231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961.

The product of its digits is 20160, while the sum is 34.

The square root of 82567231 is about 9086.6512533496. The cubic root of 82567231 is about 435.4476055008.

The spelling of 82567231 in words is "eighty-two million, five hundred sixty-seven thousand, two hundred thirty-one".