697149265 has 4 divisors (see below), whose sum is σ = 836579124. Its totient is φ = 557719408.

The previous prime is 697149203. The next prime is 697149269. The reversal of 697149265 is 562941796.

It is a happy number.

697149265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 263510289 + 433638976 = 16233^2 + 20824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-697149265 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697149269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69714922 + ... + 69714931.

It is an arithmetic number, because the mean of its divisors is an integer number (209144781).

Almost surely, 2^697149265 is an apocalyptic number.

It is an amenable number.

697149265 is a deficient number, since it is larger than the sum of its proper divisors (139429859).

697149265 is a wasteful number, since it uses less digits than its factorization.

697149265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139429858.

The product of its digits is 816480, while the sum is 49.

The square root of 697149265 is about 26403.5843210728. The cubic root of 697149265 is about 886.6970384726.

The spelling of 697149265 in words is "six hundred ninety-seven million, one hundred forty-nine thousand, two hundred sixty-five".