695778469 has 4 divisors (see below), whose sum is σ = 719770860. Its totient is φ = 671786080.

The previous prime is 695778449. The next prime is 695778481. The reversal of 695778469 is 964877596.

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 210105025 + 485673444 = 14495^2 + 22038^2 .

It is a cyclic number.

It is not a de Polignac number, because 695778469 - 2⁵ = 695778437 is a prime.

It is a super-2 number, since 2×695778469² = 968215355847967922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695778409) 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, 11996152 + ... + 11996209.

It is an arithmetic number, because the mean of its divisors is an integer number (179942715).

Almost surely, 2^695778469 is an apocalyptic number.

It is an amenable number.

695778469 is a deficient number, since it is larger than the sum of its proper divisors (23992391).

695778469 is a wasteful number, since it uses less digits than its factorization.

695778469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23992390.

The product of its digits is 22861440, while the sum is 61.

The square root of 695778469 is about 26377.6130269591. The cubic root of 695778469 is about 886.1154899924.

The spelling of 695778469 in words is "six hundred ninety-five million, seven hundred seventy-eight thousand, four hundred sixty-nine".