82749929 has 8 divisors (see below), whose sum is σ = 86494272. Its totient is φ = 79017840.

The previous prime is 82749913. The next prime is 82749967. The reversal of 82749929 is 92994728.

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 82749929 - 2⁴ = 82749913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82749229) 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, 12482 + ... + 17924.

It is an arithmetic number, because the mean of its divisors is an integer number (10811784).

Almost surely, 2^82749929 is an apocalyptic number.

It is an amenable number.

82749929 is a deficient number, since it is larger than the sum of its proper divisors (3744343).

82749929 is a wasteful number, since it uses less digits than its factorization.

82749929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127.

The product of its digits is 653184, while the sum is 50.

The square root of 82749929 is about 9096.6987968163. The cubic root of 82749929 is about 435.7685431569.

The spelling of 82749929 in words is "eighty-two million, seven hundred forty-nine thousand, nine hundred twenty-nine".