421766093 has 8 divisors (see below), whose sum is σ = 483940800. Its totient is φ = 360072000.

The previous prime is 421766089. The next prime is 421766099. The reversal of 421766093 is 390667124.

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

It is a cyclic number.

It is not a de Polignac number, because 421766093 - 2² = 421766089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421766099) 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, 118268 + ... + 121781.

It is an arithmetic number, because the mean of its divisors is an integer number (60492600).

Almost surely, 2^421766093 is an apocalyptic number.

It is an amenable number.

421766093 is a deficient number, since it is larger than the sum of its proper divisors (62174707).

421766093 is a wasteful number, since it uses less digits than its factorization.

421766093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240307.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 421766093 is about 20536.9445877424. The cubic root of 421766093 is about 749.9354569643.

The spelling of 421766093 in words is "four hundred twenty-one million, seven hundred sixty-six thousand, ninety-three".