8315988 has 24 divisors (see below), whose sum is σ = 19538400. Its totient is φ = 2752800.

The previous prime is 8315987. The next prime is 8315999. The reversal of 8315988 is 8895138.

It is a super-2 number, since 2×8315988² = 138311312832288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8315987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (814100).

Almost surely, 2^8315988 is an apocalyptic number.

It is an amenable number.

8315988 is an abundant number, since it is smaller than the sum of its proper divisors (11222412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8315988 is a wasteful number, since it uses less digits than its factorization.

8315988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807 (or 4805 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 8315988 is about 2883.7454811408. The cubic root of 8315988 is about 202.5993050504.

The spelling of 8315988 in words is "eight million, three hundred fifteen thousand, nine hundred eighty-eight".