694085983 has 2 divisors, whose sum is σ = 694085984. Its totient is φ = 694085982.

The previous prime is 694085969. The next prime is 694086049. The reversal of 694085983 is 389580496.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 694085983 - 2²¹ = 691988831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 694085983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694085383) 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, 347042991 + 347042992.

It is an arithmetic number, because the mean of its divisors is an integer number (347042992).

Almost surely, 2^694085983 is an apocalyptic number.

694085983 is a deficient number, since it is larger than the sum of its proper divisors (1).

694085983 is an equidigital number, since it uses as much as digits as its factorization.

694085983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 694085983 is about 26345.5116291182. The cubic root of 694085983 is about 885.3964125776.

The spelling of 694085983 in words is "six hundred ninety-four million, eighty-five thousand, nine hundred eighty-three".