697575745 has 8 divisors (see below), whose sum is σ = 837402984. Its totient is φ = 557852544.

The previous prime is 697575737. The next prime is 697575751. The reversal of 697575745 is 547575796.

It can be written as a sum of positive squares in 4 ways, for example, as 12759184 + 684816561 = 3572^2 + 26169^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 697575745 - 2³ = 697575737 is a prime.

It is a super-2 number, since 2×697575745² = 973223840024610050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10404 + ... + 38773.

It is an arithmetic number, because the mean of its divisors is an integer number (104675373).

Almost surely, 2^697575745 is an apocalyptic number.

It is an amenable number.

697575745 is a deficient number, since it is larger than the sum of its proper divisors (139827239).

697575745 is a wasteful number, since it uses less digits than its factorization.

697575745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52019.

The product of its digits is 9261000, while the sum is 55.

The square root of 697575745 is about 26411.6592625303. The cubic root of 697575745 is about 886.8778134685.

The spelling of 697575745 in words is "six hundred ninety-seven million, five hundred seventy-five thousand, seven hundred forty-five".