421133877 has 16 divisors (see below), whose sum is σ = 660602880. Its totient is φ = 264240576.

The previous prime is 421133851. The next prime is 421133893. The reversal of 421133877 is 778331124.

It is not a de Polignac number, because 421133877 - 2¹¹ = 421131829 is a prime.

It is a super-2 number, since 2×421133877² = 354707484714102258, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421137877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458293 + ... + 459210.

It is an arithmetic number, because the mean of its divisors is an integer number (41287680).

Almost surely, 2^421133877 is an apocalyptic number.

It is an amenable number.

421133877 is a deficient number, since it is larger than the sum of its proper divisors (239469003).

421133877 is a wasteful number, since it uses less digits than its factorization.

421133877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917529 (or 917523 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 421133877 is about 20521.5466522385. The cubic root of 421133877 is about 749.5605585719.

The spelling of 421133877 in words is "four hundred twenty-one million, one hundred thirty-three thousand, eight hundred seventy-seven".