113869947 has 4 divisors (see below), whose sum is σ = 151826600. Its totient is φ = 75913296.

The previous prime is 113869901. The next prime is 113869957. The reversal of 113869947 is 749968311.

It is a happy number.

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

It is not a de Polignac number, because 113869947 - 2¹¹ = 113867899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113869896 and 113869905.

It is not an unprimeable number, because it can be changed into a prime (113869957) 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, 18978322 + ... + 18978327.

It is an arithmetic number, because the mean of its divisors is an integer number (37956650).

Almost surely, 2^113869947 is an apocalyptic number.

113869947 is a deficient number, since it is larger than the sum of its proper divisors (37956653).

113869947 is an equidigital number, since it uses as much as digits as its factorization.

113869947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37956652.

The product of its digits is 326592, while the sum is 48.

The square root of 113869947 is about 10670.9862243375. The cubic root of 113869947 is about 484.6963018807.

The spelling of 113869947 in words is "one hundred thirteen million, eight hundred sixty-nine thousand, nine hundred forty-seven".