72672615 has 12 divisors (see below), whose sum is σ = 125965944. Its totient is φ = 38758704.

The previous prime is 72672563. The next prime is 72672641. The reversal of 72672615 is 51627627.

It is not a de Polignac number, because 72672615 - 2¹⁶ = 72607079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72672615.

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, 807429 + ... + 807518.

It is an arithmetic number, because the mean of its divisors is an integer number (10497162).

Almost surely, 2^72672615 is an apocalyptic number.

72672615 is a deficient number, since it is larger than the sum of its proper divisors (53293329).

72672615 is a wasteful number, since it uses less digits than its factorization.

72672615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614958 (or 1614955 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 72672615 is about 8524.8234585826. The cubic root of 72672615 is about 417.3082102831.

The spelling of 72672615 in words is "seventy-two million, six hundred seventy-two thousand, six hundred fifteen".