421208313 has 16 divisors (see below), whose sum is σ = 576066816. Its totient is φ = 273630080.

The previous prime is 421208311. The next prime is 421208323. The reversal of 421208313 is 313802124.

It is a cyclic number.

It is not a de Polignac number, because 421208313 - 2¹ = 421208311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421208311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26443 + ... + 39263.

It is an arithmetic number, because the mean of its divisors is an integer number (36004176).

Almost surely, 2^421208313 is an apocalyptic number.

It is an amenable number.

421208313 is a deficient number, since it is larger than the sum of its proper divisors (154858503).

421208313 is a wasteful number, since it uses less digits than its factorization.

421208313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13104.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 421208313 is about 20523.3601780995. The cubic root of 421208313 is about 749.6047179283.

The spelling of 421208313 in words is "four hundred twenty-one million, two hundred eight thousand, three hundred thirteen".