72045467 has 4 divisors (see below), whose sum is σ = 77587440. Its totient is φ = 66503496.

The previous prime is 72045451. The next prime is 72045469. The reversal of 72045467 is 76454027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76454027 = 13 ⋅5881079.

It is a cyclic number.

It is not a de Polignac number, because 72045467 - 2⁴ = 72045451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72045469) 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, 2770967 + ... + 2770992.

It is an arithmetic number, because the mean of its divisors is an integer number (19396860).

Almost surely, 2^72045467 is an apocalyptic number.

72045467 is a deficient number, since it is larger than the sum of its proper divisors (5541973).

72045467 is a wasteful number, since it uses less digits than its factorization.

72045467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541972.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 72045467 is about 8487.9601200760. The cubic root of 72045467 is about 416.1043157868.

The spelling of 72045467 in words is "seventy-two million, forty-five thousand, four hundred sixty-seven".