3872669 has 2 divisors, whose sum is σ = 3872670. Its totient is φ = 3872668.

The previous prime is 3872647. The next prime is 3872677. The reversal of 3872669 is 9662783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3496900 + 375769 = 1870^2 + 613^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3872669 is a prime.

It is a super-2 number, since 2×3872669² = 29995130367122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3872969) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1936334 + 1936335.

It is an arithmetic number, because the mean of its divisors is an integer number (1936335).

Almost surely, 2^3872669 is an apocalyptic number.

It is an amenable number.

3872669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3872669 is an equidigital number, since it uses as much as digits as its factorization.

3872669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 3872669 is about 1967.9098048437. The cubic root of 3872669 is about 157.0375314278.

The spelling of 3872669 in words is "three million, eight hundred seventy-two thousand, six hundred sixty-nine".