693890227 has 2 divisors, whose sum is σ = 693890228. Its totient is φ = 693890226.

The previous prime is 693890201. The next prime is 693890233. The reversal of 693890227 is 722098396.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 693890227 - 2¹¹ = 693888179 is a prime.

It is a super-2 number, since 2×693890227² = 962967294252223058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (693890237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346945113 + 346945114.

It is an arithmetic number, because the mean of its divisors is an integer number (346945114).

Almost surely, 2^693890227 is an apocalyptic number.

693890227 is a deficient number, since it is larger than the sum of its proper divisors (1).

693890227 is an equidigital number, since it uses as much as digits as its factorization.

693890227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 693890227 is about 26341.7961991964. The cubic root of 693890227 is about 885.3131673884.

The spelling of 693890227 in words is "six hundred ninety-three million, eight hundred ninety thousand, two hundred twenty-seven".