82172363 has 18 divisors (see below), whose sum is σ = 103517244. Its totient is φ = 65008944.

The previous prime is 82172333. The next prime is 82172383. The reversal of 82172363 is 36327128.

It is a happy number.

It is not a de Polignac number, because 82172363 - 2⁸ = 82172107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82172333) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3320 + ... + 13242.

It is an arithmetic number, because the mean of its divisors is an integer number (5750958).

Almost surely, 2^82172363 is an apocalyptic number.

82172363 is a deficient number, since it is larger than the sum of its proper divisors (21344881).

82172363 is a wasteful number, since it uses less digits than its factorization.

82172363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9963 (or 9943 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 82172363 is about 9064.8972967155. The cubic root of 82172363 is about 434.7523371128.

The spelling of 82172363 in words is "eighty-two million, one hundred seventy-two thousand, three hundred sixty-three".