82013347 has 4 divisors (see below), whose sum is σ = 88322080. Its totient is φ = 75704616.

The previous prime is 82013339. The next prime is 82013359. The reversal of 82013347 is 74331028.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 82013347 - 2³ = 82013339 is a prime.

It is a super-2 number, since 2×82013347² = 13452378172284818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82013387) 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, 3154347 + ... + 3154372.

It is an arithmetic number, because the mean of its divisors is an integer number (22080520).

Almost surely, 2^82013347 is an apocalyptic number.

82013347 is a deficient number, since it is larger than the sum of its proper divisors (6308733).

82013347 is a wasteful number, since it uses less digits than its factorization.

82013347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308732.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 82013347 is about 9056.1220729405. The cubic root of 82013347 is about 434.4717187592.

The spelling of 82013347 in words is "eighty-two million, thirteen thousand, three hundred forty-seven".