421054433 has 2 divisors, whose sum is σ = 421054434. Its totient is φ = 421054432.

The previous prime is 421054429. The next prime is 421054441. The reversal of 421054433 is 334450124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389154529 + 31899904 = 19727^2 + 5648^2 .

It is a cyclic number.

It is not a de Polignac number, because 421054433 - 2² = 421054429 is a prime.

It is not a weakly prime, because it can be changed into another prime (421054423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210527216 + 210527217.

It is an arithmetic number, because the mean of its divisors is an integer number (210527217).

Almost surely, 2^421054433 is an apocalyptic number.

It is an amenable number.

421054433 is a deficient number, since it is larger than the sum of its proper divisors (1).

421054433 is an equidigital number, since it uses as much as digits as its factorization.

421054433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 421054433 is about 20519.6109368575. The cubic root of 421054433 is about 749.5134224654.

The spelling of 421054433 in words is "four hundred twenty-one million, fifty-four thousand, four hundred thirty-three".