72301797 has 12 divisors (see below), whose sum is σ = 105103180. Its totient is φ = 47893248.

The previous prime is 72301781. The next prime is 72301829. The reversal of 72301797 is 79710327.

It can be written as a sum of positive squares in 2 ways, for example, as 12068676 + 60233121 = 3474^2 + 7761^2 .

It is not a de Polignac number, because 72301797 - 2⁴ = 72301781 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 (72301297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24172 + ... + 26997.

Almost surely, 2^72301797 is an apocalyptic number.

It is an amenable number.

72301797 is a deficient number, since it is larger than the sum of its proper divisors (32801383).

72301797 is a wasteful number, since it uses less digits than its factorization.

72301797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51332 (or 51329 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 72301797 is about 8503.0463364608. The cubic root of 72301797 is about 416.5972164424.

The spelling of 72301797 in words is "seventy-two million, three hundred one thousand, seven hundred ninety-seven".