2113687829 has 4 divisors (see below), whose sum is σ = 2305841280. Its totient is φ = 1921534380.

The previous prime is 2113687799. The next prime is 2113687831. The reversal of 2113687829 is 9287863112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2113687829 - 2²⁸ = 1845252373 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 (2113686829) 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, 96076709 + ... + 96076730.

It is an arithmetic number, because the mean of its divisors is an integer number (576460320).

Almost surely, 2^2113687829 is an apocalyptic number.

It is an amenable number.

2113687829 is a deficient number, since it is larger than the sum of its proper divisors (192153451).

2113687829 is a wasteful number, since it uses less digits than its factorization.

2113687829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192153450.

The product of its digits is 290304, while the sum is 47.

The square root of 2113687829 is about 45974.8608372010. The cubic root of 2113687829 is about 1283.3554193684.

The spelling of 2113687829 in words is "two billion, one hundred thirteen million, six hundred eighty-seven thousand, eight hundred twenty-nine".