72814449 has 8 divisors (see below), whose sum is σ = 97347712. Its totient is φ = 48412080.

The previous prime is 72814429. The next prime is 72814459. The reversal of 72814449 is 94441827.

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

It is a de Polignac number, because none of the positive numbers 2^k-72814449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72814429) 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, 31417 + ... + 33654.

It is an arithmetic number, because the mean of its divisors is an integer number (12168464).

Almost surely, 2^72814449 is an apocalyptic number.

It is an amenable number.

72814449 is a deficient number, since it is larger than the sum of its proper divisors (24533263).

72814449 is a wasteful number, since it uses less digits than its factorization.

72814449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65447.

The product of its digits is 64512, while the sum is 39.

The square root of 72814449 is about 8533.1382855313. The cubic root of 72814449 is about 417.5795184810.

The spelling of 72814449 in words is "seventy-two million, eight hundred fourteen thousand, four hundred forty-nine".