72674391 has 8 divisors (see below), whose sum is σ = 98126080. Its totient is φ = 47836152.

The previous prime is 72674389. The next prime is 72674419. The reversal of 72674391 is 19347627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72674391 - 2¹ = 72674389 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 (72674311) 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, 153085 + ... + 153558.

It is an arithmetic number, because the mean of its divisors is an integer number (12265760).

Almost surely, 2^72674391 is an apocalyptic number.

72674391 is a deficient number, since it is larger than the sum of its proper divisors (25451689).

72674391 is a wasteful number, since it uses less digits than its factorization.

72674391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306725.

The product of its digits is 63504, while the sum is 39.

The square root of 72674391 is about 8524.9276243262. The cubic root of 72674391 is about 417.3116096991.

The spelling of 72674391 in words is "seventy-two million, six hundred seventy-four thousand, three hundred ninety-one".