694164961 has 16 divisors (see below), whose sum is σ = 847863936. Its totient is φ = 554754816.

The previous prime is 694164923. The next prime is 694164979. The reversal of 694164961 is 169461496.

It is not a de Polignac number, because 694164961 - 2¹³ = 694156769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (694164901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14526 + ... + 39991.

It is an arithmetic number, because the mean of its divisors is an integer number (52991496).

Almost surely, 2^694164961 is an apocalyptic number.

It is an amenable number.

694164961 is a deficient number, since it is larger than the sum of its proper divisors (153698975).

694164961 is a wasteful number, since it uses less digits than its factorization.

694164961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54648.

The product of its digits is 279936, while the sum is 46.

The square root of 694164961 is about 26347.0104755739. The cubic root of 694164961 is about 885.4299935207.

The spelling of 694164961 in words is "six hundred ninety-four million, one hundred sixty-four thousand, nine hundred sixty-one".