421312859 has 8 divisors (see below), whose sum is σ = 483804480. Its totient is φ = 362853000.

The previous prime is 421312789. The next prime is 421312877. The reversal of 421312859 is 958213124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421312859 - 2¹² = 421308763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421312889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007717 + ... + 1008134.

It is an arithmetic number, because the mean of its divisors is an integer number (60475560).

Almost surely, 2^421312859 is an apocalyptic number.

421312859 is a deficient number, since it is larger than the sum of its proper divisors (62491621).

421312859 is a wasteful number, since it uses less digits than its factorization.

421312859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015881.

The product of its digits is 17280, while the sum is 35.

The square root of 421312859 is about 20525.9070201538. The cubic root of 421312859 is about 749.6667313387. Note that the first 3 decimals are identical.

The spelling of 421312859 in words is "four hundred twenty-one million, three hundred twelve thousand, eight hundred fifty-nine".