3869623309 has 2 divisors, whose sum is σ = 3869623310. Its totient is φ = 3869623308.

The previous prime is 3869623273. The next prime is 3869623319. The reversal of 3869623309 is 9033269683.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3409392100 + 460231209 = 58390^2 + 21453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3869623309 is a prime.

It is a super-2 number, since 2×3869623309² = 29947969107112218962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3869623319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934811654 + 1934811655.

It is an arithmetic number, because the mean of its divisors is an integer number (1934811655).

Almost surely, 2^3869623309 is an apocalyptic number.

It is an amenable number.

3869623309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3869623309 is an equidigital number, since it uses as much as digits as its factorization.

3869623309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 49.

The square root of 3869623309 is about 62206.2963774568. The cubic root of 3869623309 is about 1569.9635283020.

The spelling of 3869623309 in words is "three billion, eight hundred sixty-nine million, six hundred twenty-three thousand, three hundred nine".