72407467 has 4 divisors (see below), whose sum is σ = 78989976. Its totient is φ = 65824960.

The previous prime is 72407443. The next prime is 72407477. The reversal of 72407467 is 76470427.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72407467 - 2⁷ = 72407339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72407417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3291238 + ... + 3291259.

It is an arithmetic number, because the mean of its divisors is an integer number (19747494).

Almost surely, 2^72407467 is an apocalyptic number.

72407467 is a deficient number, since it is larger than the sum of its proper divisors (6582509).

72407467 is a wasteful number, since it uses less digits than its factorization.

72407467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6582508.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 72407467 is about 8509.2577232095. The cubic root of 72407467 is about 416.8000717007.

The spelling of 72407467 in words is "seventy-two million, four hundred seven thousand, four hundred sixty-seven".