4358991 has 24 divisors (see below), whose sum is σ = 7284144. Its totient is φ = 2298240.

The previous prime is 4358989. The next prime is 4359001. The reversal of 4358991 is 1998534.

It is not a de Polignac number, because 4358991 - 2¹ = 4358989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4358951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 771 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (303506).

Almost surely, 2^4358991 is an apocalyptic number.

4358991 is a deficient number, since it is larger than the sum of its proper divisors (2925153).

4358991 is a wasteful number, since it uses less digits than its factorization.

4358991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311 (or 2304 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 4358991 is about 2087.8196761215. The cubic root of 4358991 is about 163.3535802565.

The spelling of 4358991 in words is "four million, three hundred fifty-eight thousand, nine hundred ninety-one".