72272567 has 4 divisors (see below), whose sum is σ = 72294936. Its totient is φ = 72250200.

The previous prime is 72272537. The next prime is 72272573. The reversal of 72272567 is 76527227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76527227 = 7 ⋅10932461.

It is a cyclic number.

It is not a de Polignac number, because 72272567 - 2⁸ = 72272311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72272567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72272527) 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, 5309 + ... + 13142.

It is an arithmetic number, because the mean of its divisors is an integer number (18073734).

Almost surely, 2^72272567 is an apocalyptic number.

72272567 is a deficient number, since it is larger than the sum of its proper divisors (22369).

72272567 is a wasteful number, since it uses less digits than its factorization.

72272567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22368.

The product of its digits is 82320, while the sum is 38.

The square root of 72272567 is about 8501.3273669469. The cubic root of 72272567 is about 416.5410685619.

The spelling of 72272567 in words is "seventy-two million, two hundred seventy-two thousand, five hundred sixty-seven".