72994051 has 4 divisors (see below), whose sum is σ = 78608992. Its totient is φ = 67379112.

The previous prime is 72994049. The next prime is 72994069. The reversal of 72994051 is 15049927.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72994051 - 2¹ = 72994049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72994051.

It is not an unprimeable number, because it can be changed into a prime (72994001) 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, 2807451 + ... + 2807476.

It is an arithmetic number, because the mean of its divisors is an integer number (19652248).

Almost surely, 2^72994051 is an apocalyptic number.

72994051 is a deficient number, since it is larger than the sum of its proper divisors (5614941).

72994051 is a wasteful number, since it uses less digits than its factorization.

72994051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5614940.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 72994051 is about 8543.6555993322. The cubic root of 72994051 is about 417.9225664124.

The spelling of 72994051 in words is "seventy-two million, nine hundred ninety-four thousand, fifty-one".