697365505 has 16 divisors (see below), whose sum is σ = 843854544. Its totient is φ = 553236480.

The previous prime is 697365503. The next prime is 697365511. The reversal of 697365505 is 505563796.

It can be written as a sum of positive squares in 8 ways, for example, as 79495056 + 617870449 = 8916^2 + 24857^2 .

It is not a de Polignac number, because 697365505 - 2¹ = 697365503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697365503) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 321625 + ... + 323785.

It is an arithmetic number, because the mean of its divisors is an integer number (52740909).

Almost surely, 2^697365505 is an apocalyptic number.

It is an amenable number.

697365505 is a deficient number, since it is larger than the sum of its proper divisors (146489039).

697365505 is a wasteful number, since it uses less digits than its factorization.

697365505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676.

The product of its (nonzero) digits is 850500, while the sum is 46.

The square root of 697365505 is about 26407.6789021678. The cubic root of 697365505 is about 886.7887068121.

The spelling of 697365505 in words is "six hundred ninety-seven million, three hundred sixty-five thousand, five hundred five".