313089978 has 16 divisors (see below), whose sum is σ = 635000256. Its totient is φ = 102893280.

The previous prime is 313089949. The next prime is 313089979. The reversal of 313089978 is 879980313.

It is not an unprimeable number, because it can be changed into a prime (313089979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367051 + ... + 367902.

It is an arithmetic number, because the mean of its divisors is an integer number (39687516).

Almost surely, 2^313089978 is an apocalyptic number.

313089978 is an abundant number, since it is smaller than the sum of its proper divisors (321910278).

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

313089978 is a wasteful number, since it uses less digits than its factorization.

313089978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735029.

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

The square root of 313089978 is about 17694.3487588552. The cubic root of 313089978 is about 679.0311881290.

The spelling of 313089978 in words is "three hundred thirteen million, eighty-nine thousand, nine hundred seventy-eight".