694423133 has 2 divisors, whose sum is σ = 694423134. Its totient is φ = 694423132.

The previous prime is 694423127. The next prime is 694423139. The reversal of 694423133 is 331324496.

It is a balanced prime because it is at equal distance from previous prime (694423127) and next prime (694423139).

It can be written as a sum of positive squares in only one way, i.e., 592776409 + 101646724 = 24347^2 + 10082^2 .

It is a cyclic number.

It is not a de Polignac number, because 694423133 - 2⁴ = 694423117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 694423093 and 694423102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694423139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347211566 + 347211567.

It is an arithmetic number, because the mean of its divisors is an integer number (347211567).

Almost surely, 2^694423133 is an apocalyptic number.

It is an amenable number.

694423133 is a deficient number, since it is larger than the sum of its proper divisors (1).

694423133 is an equidigital number, since it uses as much as digits as its factorization.

694423133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 35.

The square root of 694423133 is about 26351.9094754061. The cubic root of 694423133 is about 885.5397488439.

The spelling of 694423133 in words is "six hundred ninety-four million, four hundred twenty-three thousand, one hundred thirty-three".