421676859 has 4 divisors (see below), whose sum is σ = 562235816. Its totient is φ = 281117904.

The previous prime is 421676833. The next prime is 421676863. The reversal of 421676859 is 958676124.

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

It is not a de Polignac number, because 421676859 - 2²⁴ = 404899643 is a prime.

It is a super-3 number, since 3×421676859³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421676869) 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, 70279474 + ... + 70279479.

It is an arithmetic number, because the mean of its divisors is an integer number (140558954).

Almost surely, 2^421676859 is an apocalyptic number.

421676859 is a deficient number, since it is larger than the sum of its proper divisors (140558957).

421676859 is a wasteful number, since it uses less digits than its factorization.

421676859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140558956.

The product of its digits is 725760, while the sum is 48.

The square root of 421676859 is about 20534.7719490624. The cubic root of 421676859 is about 749.8825647240.

The spelling of 421676859 in words is "four hundred twenty-one million, six hundred seventy-six thousand, eight hundred fifty-nine".