694258379 has 2 divisors, whose sum is σ = 694258380. Its totient is φ = 694258378.

The previous prime is 694258373. The next prime is 694258421. The reversal of 694258379 is 973852496.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 694258379 - 2⁴ = 694258363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 694258379.

It is not a weakly prime, because it can be changed into another prime (694258373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347129189 + 347129190.

It is an arithmetic number, because the mean of its divisors is an integer number (347129190).

Almost surely, 2^694258379 is an apocalyptic number.

694258379 is a deficient number, since it is larger than the sum of its proper divisors (1).

694258379 is an equidigital number, since it uses as much as digits as its factorization.

694258379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The square root of 694258379 is about 26348.7832546401. The cubic root of 694258379 is about 885.4697109719.

The spelling of 694258379 in words is "six hundred ninety-four million, two hundred fifty-eight thousand, three hundred seventy-nine".