72375767 has 4 divisors (see below), whose sum is σ = 73395216. Its totient is φ = 71356320.

The previous prime is 72375739. The next prime is 72375773. The reversal of 72375767 is 76757327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76757327 = 593 ⋅129439.

It is a cyclic number.

It is not a de Polignac number, because 72375767 - 2²⁶ = 5266903 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 (72375167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509618 + ... + 509759.

It is an arithmetic number, because the mean of its divisors is an integer number (18348804).

Almost surely, 2^72375767 is an apocalyptic number.

72375767 is a deficient number, since it is larger than the sum of its proper divisors (1019449).

72375767 is a wasteful number, since it uses less digits than its factorization.

72375767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019448.

The product of its digits is 432180, while the sum is 44.

The square root of 72375767 is about 8507.3948421359. The cubic root of 72375767 is about 416.7392377773.

The spelling of 72375767 in words is "seventy-two million, three hundred seventy-five thousand, seven hundred sixty-seven".