421858473 has 8 divisors (see below), whose sum is σ = 562846368. Its totient is φ = 281054784.

The previous prime is 421858427. The next prime is 421858513. The reversal of 421858473 is 374858124.

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

It is not a de Polignac number, because 421858473 - 2¹³ = 421850281 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (421858403) 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, 40615 + ... + 49932.

It is an arithmetic number, because the mean of its divisors is an integer number (70355796).

Almost surely, 2^421858473 is an apocalyptic number.

It is an amenable number.

421858473 is a deficient number, since it is larger than the sum of its proper divisors (140987895).

421858473 is a wasteful number, since it uses less digits than its factorization.

421858473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92103.

The product of its digits is 215040, while the sum is 42.

The square root of 421858473 is about 20539.1935820275. The cubic root of 421858473 is about 749.9902060943.

The spelling of 421858473 in words is "four hundred twenty-one million, eight hundred fifty-eight thousand, four hundred seventy-three".