72444597 has 4 divisors (see below), whose sum is σ = 96592800. Its totient is φ = 48296396.

The previous prime is 72444577. The next prime is 72444601. The reversal of 72444597 is 79544427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72444597 - 2⁷ = 72444469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72444527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12074097 + ... + 12074102.

It is an arithmetic number, because the mean of its divisors is an integer number (24148200).

Almost surely, 2^72444597 is an apocalyptic number.

It is an amenable number.

72444597 is a deficient number, since it is larger than the sum of its proper divisors (24148203).

72444597 is a wasteful number, since it uses less digits than its factorization.

72444597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24148202.

The product of its digits is 282240, while the sum is 42.

The square root of 72444597 is about 8511.4391850027. The cubic root of 72444597 is about 416.8713034984.

The spelling of 72444597 in words is "seventy-two million, four hundred forty-four thousand, five hundred ninety-seven".