694979 has 2 divisors, whose sum is σ = 694980. Its totient is φ = 694978.

The previous prime is 694957. The next prime is 694987. The reversal of 694979 is 979496.

694979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-694979 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 694979.

It is not a weakly prime, because it can be changed into another prime (694919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347489 + 347490.

It is an arithmetic number, because the mean of its divisors is an integer number (347490).

2⁶⁹⁴⁹⁷⁹ is an apocalyptic number.

694979 is a deficient number, since it is larger than the sum of its proper divisors (1).

694979 is an equidigital number, since it uses as much as digits as its factorization.

694979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 44.

The square root of 694979 is about 833.6540049685. The cubic root of 694979 is about 88.5775969392.

The spelling of 694979 in words is "six hundred ninety-four thousand, nine hundred seventy-nine".