72668798 has 8 divisors (see below), whose sum is σ = 109039392. Its totient is φ = 36322336.

The previous prime is 72668797. The next prime is 72668801. The reversal of 72668798 is 89786627.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72668797) 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, 8486 + ... + 14742.

It is an arithmetic number, because the mean of its divisors is an integer number (13629924).

Almost surely, 2^72668798 is an apocalyptic number.

72668798 is a deficient number, since it is larger than the sum of its proper divisors (36370594).

72668798 is a wasteful number, since it uses less digits than its factorization.

72668798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12066.

The product of its digits is 2032128, while the sum is 53.

The square root of 72668798 is about 8524.5995800389. The cubic root of 72668798 is about 417.3009040311.

The spelling of 72668798 in words is "seventy-two million, six hundred sixty-eight thousand, seven hundred ninety-eight".