72873977 has 8 divisors (see below), whose sum is σ = 79568352. Its totient is φ = 66191200.

The previous prime is 72873973. The next prime is 72874003. The reversal of 72873977 is 77937827.

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 72873977 - 2² = 72873973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72873971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15173 + ... + 19389.

It is an arithmetic number, because the mean of its divisors is an integer number (9946044).

Almost surely, 2^72873977 is an apocalyptic number.

It is an amenable number.

72873977 is a deficient number, since it is larger than the sum of its proper divisors (6694375).

72873977 is a wasteful number, since it uses less digits than its factorization.

72873977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5799.

The product of its digits is 1037232, while the sum is 50.

The square root of 72873977 is about 8536.6256214033. The cubic root of 72873977 is about 417.6932820862.

The spelling of 72873977 in words is "seventy-two million, eight hundred seventy-three thousand, nine hundred seventy-seven".