72994279 has 8 divisors (see below), whose sum is σ = 73624320. Its totient is φ = 72367200.

The previous prime is 72994261. The next prime is 72994283. The reversal of 72994279 is 97249927.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72994279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72997279) 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, 87637 + ... + 88465.

It is an arithmetic number, because the mean of its divisors is an integer number (9203040).

Almost surely, 2^72994279 is an apocalyptic number.

72994279 is a deficient number, since it is larger than the sum of its proper divisors (630041).

72994279 is a wasteful number, since it uses less digits than its factorization.

72994279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481.

The product of its digits is 571536, while the sum is 49.

The square root of 72994279 is about 8543.6689425562. The cubic root of 72994279 is about 417.9230015449.

The spelling of 72994279 in words is "seventy-two million, nine hundred ninety-four thousand, two hundred seventy-nine".