978691314 has 8 divisors (see below), whose sum is σ = 1957382640. Its totient is φ = 326230436.

The previous prime is 978691289. The next prime is 978691319. The reversal of 978691314 is 413196879.

It is a happy number.

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

978691314 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (978691319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81557604 + ... + 81557615.

It is an arithmetic number, because the mean of its divisors is an integer number (244672830).

Almost surely, 2^978691314 is an apocalyptic number.

978691314 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

978691314 is a wasteful number, since it uses less digits than its factorization.

978691314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163115224.

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

The square root of 978691314 is about 31284.0424817510. The cubic root of 978691314 is about 992.8460476769.

The spelling of 978691314 in words is "nine hundred seventy-eight million, six hundred ninety-one thousand, three hundred fourteen".