4025791 has 24 divisors (see below), whose sum is σ = 5213600. Its totient is φ = 3104640.

The previous prime is 4025783. The next prime is 4025797. The reversal of 4025791 is 1975204.

It is a happy number.

It is not a de Polignac number, because 4025791 - 2³ = 4025783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41455 + ... + 41551.

Almost surely, 2^4025791 is an apocalyptic number.

4025791 is a deficient number, since it is larger than the sum of its proper divisors (1187809).

4025791 is an equidigital number, since it uses as much as digits as its factorization.

4025791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 4025791 is about 2006.4373900025. The cubic root of 4025791 is about 159.0805467190.

The spelling of 4025791 in words is "four million, twenty-five thousand, seven hundred ninety-one".