427629893 has 2 divisors, whose sum is σ = 427629894. Its totient is φ = 427629892.

The previous prime is 427629857. The next prime is 427629899. The reversal of 427629893 is 398926724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349802209 + 77827684 = 18703^2 + 8822^2 .

It is a cyclic number.

It is not a de Polignac number, because 427629893 - 2¹⁴ = 427613509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427629899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213814946 + 213814947.

It is an arithmetic number, because the mean of its divisors is an integer number (213814947).

Almost surely, 2^427629893 is an apocalyptic number.

It is an amenable number.

427629893 is a deficient number, since it is larger than the sum of its proper divisors (1).

427629893 is an equidigital number, since it uses as much as digits as its factorization.

427629893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The square root of 427629893 is about 20679.2140324530. The cubic root of 427629893 is about 753.3949164986.

The spelling of 427629893 in words is "four hundred twenty-seven million, six hundred twenty-nine thousand, eight hundred ninety-three".