72660298 has 8 divisors (see below), whose sum is σ = 109544292. Its totient is φ = 36145536.

The previous prime is 72660293. The next prime is 72660317. The reversal of 72660298 is 89206627.

It can be written as a sum of positive squares in 2 ways, for example, as 72641529 + 18769 = 8523^2 + 137^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 72660298.

It is not an unprimeable number, because it can be changed into a prime (72660293) 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, 91815 + ... + 92602.

Almost surely, 2^72660298 is an apocalyptic number.

72660298 is a deficient number, since it is larger than the sum of its proper divisors (36883994).

72660298 is a wasteful number, since it uses less digits than its factorization.

72660298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184616.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 72660298 is about 8524.1010083175. The cubic root of 72660298 is about 417.2846329670.

The spelling of 72660298 in words is "seventy-two million, six hundred sixty thousand, two hundred ninety-eight".