2315620987 has 8 divisors (see below), whose sum is σ = 2379423200. Its totient is φ = 2251882944.

The previous prime is 2315620943. The next prime is 2315620997. The reversal of 2315620987 is 7890265132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2315620987 - 2¹⁹ = 2315096699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315620997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62314 + ... + 92272.

It is an arithmetic number, because the mean of its divisors is an integer number (297427900).

Almost surely, 2^2315620987 is an apocalyptic number.

2315620987 is a deficient number, since it is larger than the sum of its proper divisors (63802213).

2315620987 is a wasteful number, since it uses less digits than its factorization.

2315620987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32085.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 2315620987 is about 48120.8996902593. The cubic root of 2315620987 is about 1322.9877583786.

The spelling of 2315620987 in words is "two billion, three hundred fifteen million, six hundred twenty thousand, nine hundred eighty-seven".