2117490623 has 4 divisors (see below), whose sum is σ = 2117592600. Its totient is φ = 2117388648.

The previous prime is 2117490611. The next prime is 2117490637. The reversal of 2117490623 is 3260947112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2117490623 - 2⁶ = 2117490559 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 (2117490673) 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, 7448 + ... + 65501.

It is an arithmetic number, because the mean of its divisors is an integer number (529398150).

Almost surely, 2^2117490623 is an apocalyptic number.

2117490623 is a deficient number, since it is larger than the sum of its proper divisors (101977).

2117490623 is an equidigital number, since it uses as much as digits as its factorization.

2117490623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101976.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2117490623 is about 46016.1995714553. The cubic root of 2117490623 is about 1284.1245982984.

The spelling of 2117490623 in words is "two billion, one hundred seventeen million, four hundred ninety thousand, six hundred twenty-three".