4058991 has 10 divisors (see below), whose sum is σ = 6063552. Its totient is φ = 2705940.

The previous prime is 4058981. The next prime is 4059037. The reversal of 4058991 is 1998504.

It is not a de Polignac number, because 4058991 - 2⁹ = 4058479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4058981) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24975 + ... + 25136.

Almost surely, 2^4058991 is an apocalyptic number.

4058991 is a deficient number, since it is larger than the sum of its proper divisors (2004561).

4058991 is an equidigital number, since it uses as much as digits as its factorization.

4058991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50123 (or 50114 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4058991 is about 2014.6937732569. The cubic root of 4058991 is about 159.5166532993.

The spelling of 4058991 in words is "four million, fifty-eight thousand, nine hundred ninety-one".