694612943 has 2 divisors, whose sum is σ = 694612944. Its totient is φ = 694612942.

The previous prime is 694612931. The next prime is 694612969. The reversal of 694612943 is 349216496.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 694612943 - 2²⁴ = 677835727 is a prime.

It is a super-4 number, since 4×694612943⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 694612894 and 694612903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694612043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347306471 + 347306472.

It is an arithmetic number, because the mean of its divisors is an integer number (347306472).

Almost surely, 2^694612943 is an apocalyptic number.

694612943 is a deficient number, since it is larger than the sum of its proper divisors (1).

694612943 is an equidigital number, since it uses as much as digits as its factorization.

694612943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The square root of 694612943 is about 26355.5106761375. The cubic root of 694612943 is about 885.6204244338.

The spelling of 694612943 in words is "six hundred ninety-four million, six hundred twelve thousand, nine hundred forty-three".