6403699 has 4 divisors (see below), whose sum is σ = 6480936. Its totient is φ = 6326464.

The previous prime is 6403687. The next prime is 6403711. The reversal of 6403699 is 9963046.

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

It is an interprime number because it is at equal distance from previous prime (6403687) and next prime (6403711).

It is a cyclic number.

It is not a de Polignac number, because 6403699 - 2⁷ = 6403571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6413699) 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, 38494 + ... + 38659.

It is an arithmetic number, because the mean of its divisors is an integer number (1620234).

Almost surely, 2^6403699 is an apocalyptic number.

6403699 is a deficient number, since it is larger than the sum of its proper divisors (77237).

6403699 is an equidigital number, since it uses as much as digits as its factorization.

6403699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77236.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 6403699 is about 2530.5531015966. The cubic root of 6403699 is about 185.6993156995.

The spelling of 6403699 in words is "six million, four hundred three thousand, six hundred ninety-nine".