6368491 has 4 divisors (see below), whose sum is σ = 6387192. Its totient is φ = 6349792.

The previous prime is 6368471. The next prime is 6368501. The reversal of 6368491 is 1948636.

6368491 = T₂₀₅₉ + T₂₀₆₀ + T₂₀₆₁.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6368491 - 2⁵ = 6368459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6368491.

It is not an unprimeable number, because it can be changed into a prime (6368431) 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, 8830 + ... + 9523.

It is an arithmetic number, because the mean of its divisors is an integer number (1596798).

Almost surely, 2^6368491 is an apocalyptic number.

6368491 is the 2061-st centered triangular number.

6368491 is a deficient number, since it is larger than the sum of its proper divisors (18701).

6368491 is a wasteful number, since it uses less digits than its factorization.

6368491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18700.

The product of its digits is 31104, while the sum is 37.

The square root of 6368491 is about 2523.5869313340. The cubic root of 6368491 is about 185.3583606484.

It can be divided in two parts, 6368 and 491, that added together give a cube (6859 = 19³).

The spelling of 6368491 in words is "six million, three hundred sixty-eight thousand, four hundred ninety-one".