72734977 has 8 divisors (see below), whose sum is σ = 83184192. Its totient is φ = 62300400.

The previous prime is 72734969. The next prime is 72735011. The reversal of 72734977 is 77943727.

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 72734977 - 2³ = 72734969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72734917) 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, 10827 + ... + 16207.

It is an arithmetic number, because the mean of its divisors is an integer number (10398024).

Almost surely, 2^72734977 is an apocalyptic number.

It is an amenable number.

72734977 is a deficient number, since it is larger than the sum of its proper divisors (10449215).

72734977 is a wasteful number, since it uses less digits than its factorization.

72734977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7319.

The product of its digits is 518616, while the sum is 46.

The square root of 72734977 is about 8528.4803452901. The cubic root of 72734977 is about 417.4275433321.

The spelling of 72734977 in words is "seventy-two million, seven hundred thirty-four thousand, nine hundred seventy-seven".