1369697885 has 4 divisors (see below), whose sum is σ = 1643637468. Its totient is φ = 1095758304.

The previous prime is 1369697873. The next prime is 1369697911. The reversal of 1369697885 is 5887969631.

It is a happy number.

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 402363481 + 967334404 = 20059^2 + 31102^2 .

It is a cyclic number.

It is not a de Polignac number, because 1369697885 - 2¹⁶ = 1369632349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136969784 + ... + 136969793.

It is an arithmetic number, because the mean of its divisors is an integer number (410909367).

Almost surely, 2^1369697885 is an apocalyptic number.

It is an amenable number.

1369697885 is a deficient number, since it is larger than the sum of its proper divisors (273939583).

1369697885 is an equidigital number, since it uses as much as digits as its factorization.

1369697885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273939582.

The product of its digits is 19595520, while the sum is 62.

The square root of 1369697885 is about 37009.4296767729. The cubic root of 1369697885 is about 1110.5588952881.

The spelling of 1369697885 in words is "one billion, three hundred sixty-nine million, six hundred ninety-seven thousand, eight hundred eighty-five".