2317996861 has 4 divisors (see below), whose sum is σ = 2319285724. Its totient is φ = 2316708000.

The previous prime is 2317996847. The next prime is 2317996927. The reversal of 2317996861 is 1686997132.

It is a happy number.

2317996861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 390260025 + 1927736836 = 19755^2 + 43906^2 .

It is a cyclic number.

It is not a de Polignac number, because 2317996861 - 2⁹ = 2317996349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2317996799 and 2317996808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2317996841) 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, 641730 + ... + 645331.

It is an arithmetic number, because the mean of its divisors is an integer number (579821431).

Almost surely, 2^2317996861 is an apocalyptic number.

It is an amenable number.

2317996861 is a deficient number, since it is larger than the sum of its proper divisors (1288863).

2317996861 is a wasteful number, since it uses less digits than its factorization.

2317996861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288862.

The product of its digits is 979776, while the sum is 52.

The square root of 2317996861 is about 48145.5798698074. The cubic root of 2317996861 is about 1323.4400744577.

The spelling of 2317996861 in words is "two billion, three hundred seventeen million, nine hundred ninety-six thousand, eight hundred sixty-one".