72170334 has 24 divisors (see below), whose sum is σ = 159021720. Its totient is φ = 23648688.

The previous prime is 72170327. The next prime is 72170347. The reversal of 72170334 is 43307127.

It is a junction number, because it is equal to n+sod(n) for n = 72170298 and 72170307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32917 + ... + 35040.

It is an arithmetic number, because the mean of its divisors is an integer number (6625905).

Almost surely, 2^72170334 is an apocalyptic number.

72170334 is an abundant number, since it is smaller than the sum of its proper divisors (86851386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72170334 is a wasteful number, since it uses less digits than its factorization.

72170334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68024 (or 68021 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 72170334 is about 8495.3124721813. The cubic root of 72170334 is about 416.3445701311.

The spelling of 72170334 in words is "seventy-two million, one hundred seventy thousand, three hundred thirty-four".