872496791 has 4 divisors (see below), whose sum is σ = 872904192. Its totient is φ = 872089392.

The previous prime is 872496773. The next prime is 872496817. The reversal of 872496791 is 197694278.

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 872496791 - 2¹⁴ = 872480407 is a prime.

It is a super-2 number, since 2×872496791² = 1522501300610595362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872496721) 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, 200471 + ... + 204776.

It is an arithmetic number, because the mean of its divisors is an integer number (218226048).

Almost surely, 2^872496791 is an apocalyptic number.

872496791 is a deficient number, since it is larger than the sum of its proper divisors (407401).

872496791 is a wasteful number, since it uses less digits than its factorization.

872496791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407400.

The product of its digits is 1524096, while the sum is 53.

The square root of 872496791 is about 29538.0566557788. The cubic root of 872496791 is about 955.5526313629.

The spelling of 872496791 in words is "eight hundred seventy-two million, four hundred ninety-six thousand, seven hundred ninety-one".