72672715 has 8 divisors (see below), whose sum is σ = 87530688. Its totient is φ = 57922560.

The previous prime is 72672713. The next prime is 72672731. The reversal of 72672715 is 51727627.

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

It is not a de Polignac number, because 72672715 - 2¹ = 72672713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72672713) 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, 25462 + ... + 28171.

It is an arithmetic number, because the mean of its divisors is an integer number (10941336).

Almost surely, 2^72672715 is an apocalyptic number.

72672715 is a deficient number, since it is larger than the sum of its proper divisors (14857973).

72672715 is a wasteful number, since it uses less digits than its factorization.

72672715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53909.

The product of its digits is 41160, while the sum is 37.

The square root of 72672715 is about 8524.8293238047. The cubic root of 72672715 is about 417.3084016931.

It can be divided in two parts, 726 and 72715, that added together give a square (73441 = 271²).

The spelling of 72672715 in words is "seventy-two million, six hundred seventy-two thousand, seven hundred fifteen".