6366791 has 4 divisors (see below), whose sum is σ = 6643632. Its totient is φ = 6089952.

The previous prime is 6366781. The next prime is 6366803. The reversal of 6366791 is 1976636.

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 6366791 - 2¹⁰ = 6365767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6366751) 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, 138386 + ... + 138431.

It is an arithmetic number, because the mean of its divisors is an integer number (1660908).

Almost surely, 2^6366791 is an apocalyptic number.

6366791 is a deficient number, since it is larger than the sum of its proper divisors (276841).

6366791 is a wasteful number, since it uses less digits than its factorization.

6366791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276840.

The product of its digits is 40824, while the sum is 38.

The square root of 6366791 is about 2523.2500866937. The cubic root of 6366791 is about 185.3418660421.

The spelling of 6366791 in words is "six million, three hundred sixty-six thousand, seven hundred ninety-one".