694324081 has 16 divisors (see below), whose sum is σ = 827877888. Its totient is φ = 574905600.

The previous prime is 694324079. The next prime is 694324109. The reversal of 694324081 is 180423496.

It is a cyclic number.

It is not a de Polignac number, because 694324081 - 2¹ = 694324079 is a prime.

It is a super-2 number, since 2×694324081² = 964171858912989122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 694324081.

It is not an unprimeable number, because it can be changed into a prime (694324781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54090 + ... + 65683.

It is an arithmetic number, because the mean of its divisors is an integer number (51742368).

Almost surely, 2^694324081 is an apocalyptic number.

It is an amenable number.

694324081 is a deficient number, since it is larger than the sum of its proper divisors (133553807).

694324081 is a wasteful number, since it uses less digits than its factorization.

694324081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119832.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 694324081 is about 26350.0299999829. The cubic root of 694324081 is about 885.4976425978.

The spelling of 694324081 in words is "six hundred ninety-four million, three hundred twenty-four thousand, eighty-one".