72273597 has 16 divisors (see below), whose sum is σ = 108751680. Its totient is φ = 42291200.

The previous prime is 72273581. The next prime is 72273623. The reversal of 72273597 is 79537227.

It is a cyclic number.

It is not a de Polignac number, because 72273597 - 2⁴ = 72273581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72273547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36804 + ... + 38717.

It is an arithmetic number, because the mean of its divisors is an integer number (6796980).

Almost surely, 2^72273597 is an apocalyptic number.

It is an amenable number.

72273597 is a deficient number, since it is larger than the sum of its proper divisors (36478083).

72273597 is a wasteful number, since it uses less digits than its factorization.

72273597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75564.

The product of its digits is 185220, while the sum is 42.

The square root of 72273597 is about 8501.3879455063. The cubic root of 72273597 is about 416.5430473452.

The spelling of 72273597 in words is "seventy-two million, two hundred seventy-three thousand, five hundred ninety-seven".