694023427 has 2 divisors, whose sum is σ = 694023428. Its totient is φ = 694023426.

The previous prime is 694023409. The next prime is 694023433. The reversal of 694023427 is 724320496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 694023427 - 2⁷ = 694023299 is a prime.

It is a super-3 number, since 3×694023427³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (694023437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347011713 + 347011714.

It is an arithmetic number, because the mean of its divisors is an integer number (347011714).

Almost surely, 2^694023427 is an apocalyptic number.

694023427 is a deficient number, since it is larger than the sum of its proper divisors (1).

694023427 is an equidigital number, since it uses as much as digits as its factorization.

694023427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 694023427 is about 26344.3243792662. The cubic root of 694023427 is about 885.3698123564.

The spelling of 694023427 in words is "six hundred ninety-four million, twenty-three thousand, four hundred twenty-seven".