6403087 has 6 divisors (see below), whose sum is σ = 6557352. Its totient is φ = 6252372.

The previous prime is 6403063. The next prime is 6403127. The reversal of 6403087 is 7803046.

It is not a de Polignac number, because 6403087 - 2¹⁹ = 5878799 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 (6403387) 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 5 ways as a sum of consecutive naturals, for example, 118 + ... + 3580.

It is an arithmetic number, because the mean of its divisors is an integer number (1092892).

Almost surely, 2^6403087 is an apocalyptic number.

6403087 is a deficient number, since it is larger than the sum of its proper divisors (154265).

6403087 is an equidigital number, since it uses as much as digits as its factorization.

6403087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549 (or 3506 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 6403087 is about 2530.4321765264. The cubic root of 6403087 is about 185.6933997645.

The spelling of 6403087 in words is "six million, four hundred three thousand, eighty-seven".