694656001 has 8 divisors (see below), whose sum is σ = 762206760. Its totient is φ = 629121792.

The previous prime is 694655993. The next prime is 694656007. The reversal of 694656001 is 100656496.

It can be written as a sum of positive squares in 4 ways, for example, as 79566400 + 615089601 = 8920^2 + 24801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 694656001 - 2³ = 694655993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (694656007) 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 7 ways as a sum of consecutive naturals, for example, 503416 + ... + 504793.

It is an arithmetic number, because the mean of its divisors is an integer number (95275845).

Almost surely, 2^694656001 is an apocalyptic number.

It is an amenable number.

694656001 is a deficient number, since it is larger than the sum of its proper divisors (67550759).

694656001 is a wasteful number, since it uses less digits than its factorization.

694656001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008275.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 694656001 is about 26356.3275324921. The cubic root of 694656001 is about 885.6387234767.

It can be divided in two parts, 69465 and 6001, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 694656001 in words is "six hundred ninety-four million, six hundred fifty-six thousand, one".