72132347 has 8 divisors (see below), whose sum is σ = 86021376. Its totient is φ = 59139432.

The previous prime is 72132337. The next prime is 72132349. The reversal of 72132347 is 74323127.

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 72132347 - 2⁸ = 72132091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72132349) 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, 223853 + ... + 224174.

It is an arithmetic number, because the mean of its divisors is an integer number (10752672).

Almost surely, 2^72132347 is an apocalyptic number.

72132347 is a deficient number, since it is larger than the sum of its proper divisors (13889029).

72132347 is a wasteful number, since it uses less digits than its factorization.

72132347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448057.

The product of its digits is 7056, while the sum is 29.

The square root of 72132347 is about 8493.0764155281. The cubic root of 72132347 is about 416.2715093780.

The spelling of 72132347 in words is "seventy-two million, one hundred thirty-two thousand, three hundred forty-seven".