3623999969 has 2 divisors, whose sum is σ = 3623999970. Its totient is φ = 3623999968.

The previous prime is 3623999959. The next prime is 3623999987. The reversal of 3623999969 is 9699993263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3610567744 + 13432225 = 60088^2 + 3665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3623999969 is a prime.

It is a super-2 number, since 2×3623999969² = 26266751550624001922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3623999959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1811999984 + 1811999985.

It is an arithmetic number, because the mean of its divisors is an integer number (1811999985).

Almost surely, 2^3623999969 is an apocalyptic number.

It is an amenable number.

3623999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3623999969 is an equidigital number, since it uses as much as digits as its factorization.

3623999969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38263752, while the sum is 65.

The square root of 3623999969 is about 60199.6675156931. The cubic root of 3623999969 is about 1536.0171395261.

The spelling of 3623999969 in words is "three billion, six hundred twenty-three million, nine hundred ninety-nine thousand, nine hundred sixty-nine".