421958313 has 12 divisors (see below), whose sum is σ = 696566208. Its totient is φ = 241119000.

The previous prime is 421958297. The next prime is 421958333. The reversal of 421958313 is 313859124.

It is not a de Polignac number, because 421958313 - 2⁴ = 421958297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421958333) 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 11 ways as a sum of consecutive naturals, for example, 3348813 + ... + 3348938.

It is an arithmetic number, because the mean of its divisors is an integer number (58047184).

Almost surely, 2^421958313 is an apocalyptic number.

It is an amenable number.

421958313 is a deficient number, since it is larger than the sum of its proper divisors (274607895).

421958313 is a wasteful number, since it uses less digits than its factorization.

421958313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697764 (or 6697761 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 421958313 is about 20541.6239134105. The cubic root of 421958313 is about 750.0493674171.

The spelling of 421958313 in words is "four hundred twenty-one million, nine hundred fifty-eight thousand, three hundred thirteen".