421107283 has 4 divisors (see below), whose sum is σ = 423223600. Its totient is φ = 418990968.

The previous prime is 421107233. The next prime is 421107287. The reversal of 421107283 is 382701124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421107283 - 2¹⁷ = 420976211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421107287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1057860 + ... + 1058257.

It is an arithmetic number, because the mean of its divisors is an integer number (105805900).

Almost surely, 2^421107283 is an apocalyptic number.

421107283 is a deficient number, since it is larger than the sum of its proper divisors (2116317).

421107283 is a wasteful number, since it uses less digits than its factorization.

421107283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116316.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 421107283 is about 20520.8986888976. The cubic root of 421107283 is about 749.5447803486.

The spelling of 421107283 in words is "four hundred twenty-one million, one hundred seven thousand, two hundred eighty-three".