3939269 has 2 divisors, whose sum is σ = 3939270. Its totient is φ = 3939268.

The previous prime is 3939259. The next prime is 3939277. The reversal of 3939269 is 9629393.

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., 3724900 + 214369 = 1930^2 + 463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3939269 is a prime.

It is a super-2 number, since 2×3939269² = 31035680508722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3939209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969634 + 1969635.

It is an arithmetic number, because the mean of its divisors is an integer number (1969635).

Almost surely, 2^3939269 is an apocalyptic number.

It is an amenable number.

3939269 is a deficient number, since it is larger than the sum of its proper divisors (1).

3939269 is an equidigital number, since it uses as much as digits as its factorization.

3939269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78732, while the sum is 41.

The square root of 3939269 is about 1984.7591793465. The cubic root of 3939269 is about 157.9326343165.

The spelling of 3939269 in words is "three million, nine hundred thirty-nine thousand, two hundred sixty-nine".