421424793 has 6 divisors (see below), whose sum is σ = 608724714. Its totient is φ = 280949856.

The previous prime is 421424779. The next prime is 421424797. The reversal of 421424793 is 397424124.

421424793 is a `hidden beast` number, since 42 + 142 + 479 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 213978384 + 207446409 = 14628^2 + 14403^2 .

It is not a de Polignac number, because 421424793 - 2⁴ = 421424777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421424797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23412480 + ... + 23412497.

It is an arithmetic number, because the mean of its divisors is an integer number (101454119).

Almost surely, 2^421424793 is an apocalyptic number.

It is an amenable number.

421424793 is a deficient number, since it is larger than the sum of its proper divisors (187299921).

421424793 is a wasteful number, since it uses less digits than its factorization.

421424793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46824983 (or 46824980 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 421424793 is about 20528.6334908099. The cubic root of 421424793 is about 749.7331157083.

The spelling of 421424793 in words is "four hundred twenty-one million, four hundred twenty-four thousand, seven hundred ninety-three".