8972791 has 4 divisors (see below), whose sum is σ = 9065392. Its totient is φ = 8880192.

The previous prime is 8972749. The next prime is 8972797. The reversal of 8972791 is 1972798.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8972791 - 2⁹ = 8972279 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 (8972797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46155 + ... + 46348.

It is an arithmetic number, because the mean of its divisors is an integer number (2266348).

Almost surely, 2^8972791 is an apocalyptic number.

8972791 is a deficient number, since it is larger than the sum of its proper divisors (92601).

8972791 is an equidigital number, since it uses as much as digits as its factorization.

8972791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92600.

The product of its digits is 63504, while the sum is 43.

The square root of 8972791 is about 2995.4617340237. The cubic root of 8972791 is about 207.7985521873.

The spelling of 8972791 in words is "eight million, nine hundred seventy-two thousand, seven hundred ninety-one".