316677421 has 4 divisors (see below), whose sum is σ = 319171072. Its totient is φ = 314183772.

The previous prime is 316677401. The next prime is 316677457. The reversal of 316677421 is 124776613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124776613 = 13 ⋅9598201.

It is a cyclic number.

It is not a de Polignac number, because 316677421 - 2⁷ = 316677293 is a prime.

It is a super-2 number, since 2×316677421² = 200569177942422482, 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 (316677401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246635 + ... + 1246888.

It is an arithmetic number, because the mean of its divisors is an integer number (79792768).

Almost surely, 2^316677421 is an apocalyptic number.

It is an amenable number.

316677421 is a deficient number, since it is larger than the sum of its proper divisors (2493651).

316677421 is a wasteful number, since it uses less digits than its factorization.

316677421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493650.

The product of its digits is 42336, while the sum is 37.

The square root of 316677421 is about 17795.4325881671. The cubic root of 316677421 is about 681.6148335544.

The spelling of 316677421 in words is "three hundred sixteen million, six hundred seventy-seven thousand, four hundred twenty-one".