313967988 has 30 divisors (see below), whose sum is σ = 820775186. Its totient is φ = 104655888.

The previous prime is 313967987. The next prime is 313968023. The reversal of 313967988 is 889769313.

It can be written as a sum of positive squares in only one way, i.e., 254338704 + 59629284 = 15948^2 + 7722^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313967981) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 484195 + ... + 484842.

Almost surely, 2^313967988 is an apocalyptic number.

It is an amenable number.

313967988 is an abundant number, since it is smaller than the sum of its proper divisors (506807198).

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

313967988 is a wasteful number, since it uses less digits than its factorization.

313967988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969053 (or 969042 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 313967988 is about 17719.1418528099. The cubic root of 313967988 is about 679.6653399386.

The spelling of 313967988 in words is "three hundred thirteen million, nine hundred sixty-seven thousand, nine hundred eighty-eight".