3599999969 has 2 divisors, whose sum is σ = 3599999970. Its totient is φ = 3599999968.

The previous prime is 3599999933. The next prime is 3600000011. The reversal of 3599999969 is 9699999953.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2811120400 + 788879569 = 53020^2 + 28087^2 .

It is a cyclic number.

It is not a de Polignac number, because 3599999969 - 2²⁰ = 3598951393 is a prime.

It is a super-2 number, since 2×3599999969² = 25919999553600001922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3599999969.

It is not a weakly prime, because it can be changed into another prime (3599999569) 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 as a sum of consecutive naturals, namely, 1799999984 + 1799999985.

It is an arithmetic number, because the mean of its divisors is an integer number (1799999985).

Almost surely, 2^3599999969 is an apocalyptic number.

It is an amenable number.

3599999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3599999969 is an equidigital number, since it uses as much as digits as its factorization.

3599999969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430467210, while the sum is 77.

The square root of 3599999969 is about 59999.9997416667. Note that the first 3 decimals coincide. The cubic root of 3599999969 is about 1532.6188603879.

The spelling of 3599999969 in words is "three billion, five hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred sixty-nine".