872097783 has 16 divisors (see below), whose sum is σ = 1172193792. Its totient is φ = 576720000.

The previous prime is 872097781. The next prime is 872097833. The reversal of 872097783 is 387790278.

It is not a de Polignac number, because 872097783 - 2¹ = 872097781 is a prime.

It is a super-2 number, since 2×872097783² = 1521109086227030178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872097781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193708 + ... + 198158.

It is an arithmetic number, because the mean of its divisors is an integer number (73262112).

Almost surely, 2^872097783 is an apocalyptic number.

872097783 is a deficient number, since it is larger than the sum of its proper divisors (300096009).

872097783 is a wasteful number, since it uses less digits than its factorization.

872097783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The square root of 872097783 is about 29531.3017491610. The cubic root of 872097783 is about 955.4069455242.

The spelling of 872097783 in words is "eight hundred seventy-two million, ninety-seven thousand, seven hundred eighty-three".