72072897 has 8 divisors (see below), whose sum is σ = 103489344. Its totient is φ = 44352528.

The previous prime is 72072863. The next prime is 72072899. The reversal of 72072897 is 79827027.

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

It is not a de Polignac number, because 72072897 - 2⁷ = 72072769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72072899) 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, 923973 + ... + 924050.

It is an arithmetic number, because the mean of its divisors is an integer number (12936168).

Almost surely, 2^72072897 is an apocalyptic number.

It is an amenable number.

72072897 is a deficient number, since it is larger than the sum of its proper divisors (31416447).

72072897 is a wasteful number, since it uses less digits than its factorization.

72072897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848039.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 72072897 is about 8489.5757844547. The cubic root of 72072897 is about 416.1571171341.

The spelling of 72072897 in words is "seventy-two million, seventy-two thousand, eight hundred ninety-seven".