72767073 has 4 divisors (see below), whose sum is σ = 97022768. Its totient is φ = 48511380.

The previous prime is 72767059. The next prime is 72767099. The reversal of 72767073 is 37076727.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 72767073 - 2²⁰ = 71718497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72727073) 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, 12127843 + ... + 12127848.

It is an arithmetic number, because the mean of its divisors is an integer number (24255692).

Almost surely, 2^72767073 is an apocalyptic number.

It is an amenable number.

72767073 is a deficient number, since it is larger than the sum of its proper divisors (24255695).

72767073 is a wasteful number, since it uses less digits than its factorization.

72767073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24255694.

The product of its (nonzero) digits is 86436, while the sum is 39.

The square root of 72767073 is about 8530.3618328885. The cubic root of 72767073 is about 417.4889341731.

The spelling of 72767073 in words is "seventy-two million, seven hundred sixty-seven thousand, seventy-three".