72766273 has 8 divisors (see below), whose sum is σ = 80396928. Its totient is φ = 65507904.

The previous prime is 72766241. The next prime is 72766279. The reversal of 72766273 is 37266727.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72766273 - 2⁵ = 72766241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72766279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92661 + ... + 93442.

It is an arithmetic number, because the mean of its divisors is an integer number (10049616).

Almost surely, 2^72766273 is an apocalyptic number.

It is an amenable number.

72766273 is a deficient number, since it is larger than the sum of its proper divisors (7630655).

72766273 is a wasteful number, since it uses less digits than its factorization.

72766273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186143.

The product of its digits is 148176, while the sum is 40.

The square root of 72766273 is about 8530.3149414309. The cubic root of 72766273 is about 417.4874042120.

The spelling of 72766273 in words is "seventy-two million, seven hundred sixty-six thousand, two hundred seventy-three".