421024943 has 2 divisors, whose sum is σ = 421024944. Its totient is φ = 421024942.

The previous prime is 421024931. The next prime is 421024957. The reversal of 421024943 is 349420124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421024943 - 2⁴ = 421024927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421024343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210512471 + 210512472.

It is an arithmetic number, because the mean of its divisors is an integer number (210512472).

Almost surely, 2^421024943 is an apocalyptic number.

421024943 is a deficient number, since it is larger than the sum of its proper divisors (1).

421024943 is an equidigital number, since it uses as much as digits as its factorization.

421024943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 421024943 is about 20518.8923433990. The cubic root of 421024943 is about 749.4959238040.

The spelling of 421024943 in words is "four hundred twenty-one million, twenty-four thousand, nine hundred forty-three".