72673159 has 8 divisors (see below), whose sum is σ = 80962560. Its totient is φ = 64769376.

The previous prime is 72673151. The next prime is 72673163. The reversal of 72673159 is 95137627.

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 72673159 - 2³ = 72673151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72673151) 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, 96007 + ... + 96760.

It is an arithmetic number, because the mean of its divisors is an integer number (10120320).

Almost surely, 2^72673159 is an apocalyptic number.

72673159 is a deficient number, since it is larger than the sum of its proper divisors (8289401).

72673159 is a wasteful number, since it uses less digits than its factorization.

72673159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192809.

The product of its digits is 79380, while the sum is 40.

The square root of 72673159 is about 8524.8553653420. The cubic root of 72673159 is about 417.3092515515.

The spelling of 72673159 in words is "seventy-two million, six hundred seventy-three thousand, one hundred fifty-nine".