2315890947 has 16 divisors (see below), whose sum is σ = 3171725568. Its totient is φ = 1502266080.

The previous prime is 2315890931. The next prime is 2315891003. The reversal of 2315890947 is 7490985132.

It is not a de Polignac number, because 2315890947 - 2⁴ = 2315890931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2315890896 and 2315890905.

It is not an unprimeable number, because it can be changed into a prime (2315890147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204 + ... + 68057.

It is an arithmetic number, because the mean of its divisors is an integer number (198232848).

Almost surely, 2^2315890947 is an apocalyptic number.

2315890947 is a deficient number, since it is larger than the sum of its proper divisors (855834621).

2315890947 is a wasteful number, since it uses less digits than its factorization.

2315890947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68570.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 2315890947 is about 48123.7046267222. The cubic root of 2315890947 is about 1323.0391686193.

The spelling of 2315890947 in words is "two billion, three hundred fifteen million, eight hundred ninety thousand, nine hundred forty-seven".