421353313 has 4 divisors (see below), whose sum is σ = 446138820. Its totient is φ = 396567808.

The previous prime is 421353311. The next prime is 421353319. The reversal of 421353313 is 313353124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 348643584 + 72709729 = 18672^2 + 8527^2 .

It is a cyclic number.

It is not a de Polignac number, because 421353313 - 2¹ = 421353311 is a prime.

It is a super-2 number, since 2×421353313² = 355077228752151938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421353311) 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, 12392728 + ... + 12392761.

It is an arithmetic number, because the mean of its divisors is an integer number (111534705).

Almost surely, 2^421353313 is an apocalyptic number.

It is an amenable number.

421353313 is a deficient number, since it is larger than the sum of its proper divisors (24785507).

421353313 is a wasteful number, since it uses less digits than its factorization.

421353313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24785506.

The product of its digits is 3240, while the sum is 25.

The square root of 421353313 is about 20526.8924340729. The cubic root of 421353313 is about 749.6907246307.

The spelling of 421353313 in words is "four hundred twenty-one million, three hundred fifty-three thousand, three hundred thirteen".