72461866 has 8 divisors (see below), whose sum is σ = 108731520. Its totient is φ = 36218028.

The previous prime is 72461863. The next prime is 72461887. The reversal of 72461866 is 66816427.

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

It is not an unprimeable number, because it can be changed into a prime (72461861) 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, 3865 + ... + 12643.

It is an arithmetic number, because the mean of its divisors is an integer number (13591440).

Almost surely, 2^72461866 is an apocalyptic number.

72461866 is a deficient number, since it is larger than the sum of its proper divisors (36269654).

72461866 is a wasteful number, since it uses less digits than its factorization.

72461866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12908.

The product of its digits is 96768, while the sum is 40.

The square root of 72461866 is about 8512.4535828397. The cubic root of 72461866 is about 416.9044248025.

The spelling of 72461866 in words is "seventy-two million, four hundred sixty-one thousand, eight hundred sixty-six".