6692399 has 4 divisors (see below), whose sum is σ = 7648464. Its totient is φ = 5736336.

The previous prime is 6692393. The next prime is 6692419. The reversal of 6692399 is 9932966.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9932966 = 2 ⋅4966483.

It is a cyclic number.

It is not a de Polignac number, because 6692399 - 2⁴ = 6692383 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 (6692393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478022 + ... + 478035.

It is an arithmetic number, because the mean of its divisors is an integer number (1912116).

Almost surely, 2^6692399 is an apocalyptic number.

6692399 is a deficient number, since it is larger than the sum of its proper divisors (956065).

6692399 is an equidigital number, since it uses as much as digits as its factorization.

6692399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956064.

The product of its digits is 157464, while the sum is 44.

The square root of 6692399 is about 2586.9671432007. The cubic root of 6692399 is about 188.4490454154.

The spelling of 6692399 in words is "six million, six hundred ninety-two thousand, three hundred ninety-nine".