6458891 has 4 divisors (see below), whose sum is σ = 6464352. Its totient is φ = 6453432.

The previous prime is 6458887. The next prime is 6458897. The reversal of 6458891 is 1988546.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6458891 - 2² = 6458887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6458897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131 + ... + 3596.

It is an arithmetic number, because the mean of its divisors is an integer number (1616088).

Almost surely, 2^6458891 is an apocalyptic number.

6458891 is a deficient number, since it is larger than the sum of its proper divisors (5461).

6458891 is a wasteful number, since it uses less digits than its factorization.

6458891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460.

The product of its digits is 69120, while the sum is 41.

The square root of 6458891 is about 2541.4348309567. The cubic root of 6458891 is about 186.2312901044.

The spelling of 6458891 in words is "six million, four hundred fifty-eight thousand, eight hundred ninety-one".