72926297 has 8 divisors (see below), whose sum is σ = 75021576. Its totient is φ = 70837632.

The previous prime is 72926279. The next prime is 72926317. The reversal of 72926297 is 79262927.

It can be written as a sum of positive squares in 4 ways, for example, as 33223696 + 39702601 = 5764^2 + 6301^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 72926297 - 2⁶ = 72926233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72926257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28253 + ... + 30725.

It is an arithmetic number, because the mean of its divisors is an integer number (9377697).

Almost surely, 2^72926297 is an apocalyptic number.

It is an amenable number.

72926297 is a deficient number, since it is larger than the sum of its proper divisors (2095279).

72926297 is a wasteful number, since it uses less digits than its factorization.

72926297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307.

The product of its digits is 190512, while the sum is 44.

The square root of 72926297 is about 8539.6895142622. The cubic root of 72926297 is about 417.7932193822.

The spelling of 72926297 in words is "seventy-two million, nine hundred twenty-six thousand, two hundred ninety-seven".