421301093 has 2 divisors, whose sum is σ = 421301094. Its totient is φ = 421301092.

The previous prime is 421301071. The next prime is 421301119. The reversal of 421301093 is 390103124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326958724 + 94342369 = 18082^2 + 9713^2 .

It is a cyclic number.

It is not a de Polignac number, because 421301093 - 2⁶ = 421301029 is a prime.

It is a super-2 number, since 2×421301093² = 354989221925989298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421301063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210650546 + 210650547.

It is an arithmetic number, because the mean of its divisors is an integer number (210650547).

Almost surely, 2^421301093 is an apocalyptic number.

It is an amenable number.

421301093 is a deficient number, since it is larger than the sum of its proper divisors (1).

421301093 is an equidigital number, since it uses as much as digits as its factorization.

421301093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 421301093 is about 20525.6204047527. The cubic root of 421301093 is about 749.6597526286.

The spelling of 421301093 in words is "four hundred twenty-one million, three hundred one thousand, ninety-three".