82712534 has 8 divisors (see below), whose sum is σ = 124176888. Its totient is φ = 41320240.

The previous prime is 82712533. The next prime is 82712537. The reversal of 82712534 is 43521728.

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

It is a self number, because there is not a number n which added to its sum of digits gives 82712534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82712533) 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, 15047 + ... + 19794.

It is an arithmetic number, because the mean of its divisors is an integer number (15522111).

Almost surely, 2^82712534 is an apocalyptic number.

82712534 is a deficient number, since it is larger than the sum of its proper divisors (41464354).

82712534 is a wasteful number, since it uses less digits than its factorization.

82712534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36030.

The product of its digits is 13440, while the sum is 32.

The square root of 82712534 is about 9094.6431485793. The cubic root of 82712534 is about 435.7028914592.

The spelling of 82712534 in words is "eighty-two million, seven hundred twelve thousand, five hundred thirty-four".