3925591 has 2 divisors, whose sum is σ = 3925592. Its totient is φ = 3925590.

The previous prime is 3925583. The next prime is 3925613. The reversal of 3925591 is 1955293.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1955293) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3925591 - 2³ = 3925583 is a prime.

It is a super-3 number, since 3×3925591³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3925541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1962795 + 1962796.

It is an arithmetic number, because the mean of its divisors is an integer number (1962796).

Almost surely, 2^3925591 is an apocalyptic number.

3925591 is a deficient number, since it is larger than the sum of its proper divisors (1).

3925591 is an equidigital number, since it uses as much as digits as its factorization.

3925591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12150, while the sum is 34.

The square root of 3925591 is about 1981.3104249461. The cubic root of 3925591 is about 157.7496301739.

The spelling of 3925591 in words is "three million, nine hundred twenty-five thousand, five hundred ninety-one".