72966739 has 8 divisors (see below), whose sum is σ = 74072880. Its totient is φ = 71867136.

The previous prime is 72966731. The next prime is 72966749. The reversal of 72966739 is 93766927.

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 72966739 - 2³ = 72966731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72966692 and 72966701.

It is not an unprimeable number, because it can be changed into a prime (72966731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23739 + ... + 26635.

It is an arithmetic number, because the mean of its divisors is an integer number (9259110).

Almost surely, 2^72966739 is an apocalyptic number.

72966739 is a deficient number, since it is larger than the sum of its proper divisors (1106141).

72966739 is a wasteful number, since it uses less digits than its factorization.

72966739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269.

The product of its digits is 857304, while the sum is 49.

The square root of 72966739 is about 8542.0570707529. The cubic root of 72966739 is about 417.8704355657.

The spelling of 72966739 in words is "seventy-two million, nine hundred sixty-six thousand, seven hundred thirty-nine".