427884293 has 2 divisors, whose sum is σ = 427884294. Its totient is φ = 427884292.

The previous prime is 427884257. The next prime is 427884307. The reversal of 427884293 is 392488724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361266049 + 66618244 = 19007^2 + 8162^2 .

It is a cyclic number.

It is not a de Polignac number, because 427884293 - 2¹⁸ = 427622149 is a prime.

It is a super-2 number, since 2×427884293² = 366169936392219698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427884253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213942146 + 213942147.

It is an arithmetic number, because the mean of its divisors is an integer number (213942147).

Almost surely, 2^427884293 is an apocalyptic number.

It is an amenable number.

427884293 is a deficient number, since it is larger than the sum of its proper divisors (1).

427884293 is an equidigital number, since it uses as much as digits as its factorization.

427884293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 47.

The square root of 427884293 is about 20685.3642220774. The cubic root of 427884293 is about 753.5442868421.

The spelling of 427884293 in words is "four hundred twenty-seven million, eight hundred eighty-four thousand, two hundred ninety-three".