421341693 has 4 divisors (see below), whose sum is σ = 561788928. Its totient is φ = 280894460.

The previous prime is 421341647. The next prime is 421341703. The reversal of 421341693 is 396143124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421341693 - 2⁶ = 421341629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421341593) 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 3 ways as a sum of consecutive naturals, for example, 70223613 + ... + 70223618.

It is an arithmetic number, because the mean of its divisors is an integer number (140447232).

Almost surely, 2^421341693 is an apocalyptic number.

It is an amenable number.

421341693 is a deficient number, since it is larger than the sum of its proper divisors (140447235).

421341693 is a wasteful number, since it uses less digits than its factorization.

421341693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140447234.

The product of its digits is 15552, while the sum is 33.

The square root of 421341693 is about 20526.6093887909. The cubic root of 421341693 is about 749.6838329588.

The spelling of 421341693 in words is "four hundred twenty-one million, three hundred forty-one thousand, six hundred ninety-three".