313677421 has 6 divisors (see below), whose sum is σ = 333214730. Its totient is φ = 295225536.

The previous prime is 313677409. The next prime is 313677439. The reversal of 313677421 is 124776313.

It can be written as a sum of positive squares in 3 ways, for example, as 111724900 + 201952521 = 10570^2 + 14211^2 .

It is not a de Polignac number, because 313677421 - 2¹⁷ = 313546349 is a prime.

It is a super-2 number, since 2×313677421² = 196787048890422482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313677401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542406 + ... + 542983.

Almost surely, 2^313677421 is an apocalyptic number.

It is an amenable number.

313677421 is a deficient number, since it is larger than the sum of its proper divisors (19537309).

313677421 is a wasteful number, since it uses less digits than its factorization.

313677421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085423 (or 1085406 counting only the distinct ones).

The product of its digits is 21168, while the sum is 34.

The square root of 313677421 is about 17710.9407147108. The cubic root of 313677421 is about 679.4556059523.

The spelling of 313677421 in words is "three hundred thirteen million, six hundred seventy-seven thousand, four hundred twenty-one".