1369957689 has 6 divisors (see below), whose sum is σ = 1978827786. Its totient is φ = 913305120.

The previous prime is 1369957657. The next prime is 1369957691. The reversal of 1369957689 is 9867599631.

It can be written as a sum of positive squares in only one way, i.e., 1060479225 + 309478464 = 32565^2 + 17592^2 .

It is not a de Polignac number, because 1369957689 - 2⁵ = 1369957657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1369957619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76108752 + ... + 76108769.

It is an arithmetic number, because the mean of its divisors is an integer number (329804631).

Almost surely, 2^1369957689 is an apocalyptic number.

It is an amenable number.

1369957689 is a deficient number, since it is larger than the sum of its proper divisors (608870097).

1369957689 is a wasteful number, since it uses less digits than its factorization.

1369957689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152217527 (or 152217524 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The square root of 1369957689 is about 37012.9394806735. The cubic root of 1369957689 is about 1110.6291077064.

The spelling of 1369957689 in words is "one billion, three hundred sixty-nine million, nine hundred fifty-seven thousand, six hundred eighty-nine".