314978 has 4 divisors (see below), whose sum is σ = 472470. Its totient is φ = 157488.

The previous prime is 314957. The next prime is 314983. The reversal of 314978 is 879413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 277729 + 37249 = 527^2 + 193^2 .

It is a super-2 number, since 2×314978² = 198422280968, which contains 22 as substring.

It is an unprimeable number.

314978 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78743 + ... + 78746.

2³¹⁴⁹⁷⁸ is an apocalyptic number.

314978 is a deficient number, since it is larger than the sum of its proper divisors (157492).

314978 is a wasteful number, since it uses less digits than its factorization.

314978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157491.

The product of its digits is 6048, while the sum is 32.

The square root of 314978 is about 561.2290085161. The cubic root of 314978 is about 68.0393371012.

The spelling of 314978 in words is "three hundred fourteen thousand, nine hundred seventy-eight".