6694499 has 4 divisors (see below), whose sum is σ = 7650864. Its totient is φ = 5738136.

The previous prime is 6694477. The next prime is 6694511. The reversal of 6694499 is 9944966.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6694499 is a prime.

It is a super-2 number, since 2×6694499² = 89632633722002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6694409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478172 + ... + 478185.

It is an arithmetic number, because the mean of its divisors is an integer number (1912716).

Almost surely, 2^6694499 is an apocalyptic number.

6694499 is a deficient number, since it is larger than the sum of its proper divisors (956365).

6694499 is an equidigital number, since it uses as much as digits as its factorization.

6694499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956364.

The product of its digits is 419904, while the sum is 47.

The square root of 6694499 is about 2587.3729920520. The cubic root of 6694499 is about 188.4687544221.

It can be divided in two parts, 669 and 4499, that multiplied together give a triangular number (3009831 = T₂₄₅₃).

The spelling of 6694499 in words is "six million, six hundred ninety-four thousand, four hundred ninety-nine".