72466751 has 4 divisors (see below), whose sum is σ = 82819152. Its totient is φ = 62114352.

The previous prime is 72466729. The next prime is 72466753. The reversal of 72466751 is 15766427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15766427 = 41 ⋅384547.

It is a cyclic number.

It is not a de Polignac number, because 72466751 - 2⁶ = 72466687 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 (72466753) 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, 5176190 + ... + 5176203.

It is an arithmetic number, because the mean of its divisors is an integer number (20704788).

Almost surely, 2^72466751 is an apocalyptic number.

72466751 is a deficient number, since it is larger than the sum of its proper divisors (10352401).

72466751 is a wasteful number, since it uses less digits than its factorization.

72466751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10352400.

The product of its digits is 70560, while the sum is 38.

The square root of 72466751 is about 8512.7405105524. The cubic root of 72466751 is about 416.9137930973.

The spelling of 72466751 in words is "seventy-two million, four hundred sixty-six thousand, seven hundred fifty-one".