72892915 has 4 divisors (see below), whose sum is σ = 87471504. Its totient is φ = 58314328.

The previous prime is 72892903. The next prime is 72892951. The reversal of 72892915 is 51929827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51929827 = 479 ⋅108413.

It is a cyclic number.

It is not a de Polignac number, because 72892915 - 2¹⁹ = 72368627 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7289287 + ... + 7289296.

It is an arithmetic number, because the mean of its divisors is an integer number (21867876).

Almost surely, 2^72892915 is an apocalyptic number.

72892915 is a deficient number, since it is larger than the sum of its proper divisors (14578589).

72892915 is a wasteful number, since it uses less digits than its factorization.

72892915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14578588.

The product of its digits is 90720, while the sum is 43.

The square root of 72892915 is about 8537.7347698321. The cubic root of 72892915 is about 417.7294613946.

The spelling of 72892915 in words is "seventy-two million, eight hundred ninety-two thousand, nine hundred fifteen".