6390064 has 10 divisors (see below), whose sum is σ = 12380780. Its totient is φ = 3195024.

The previous prime is 6390053. The next prime is 6390107. The reversal of 6390064 is 4600936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199674 + ... + 199705.

It is an arithmetic number, because the mean of its divisors is an integer number (1238078).

Almost surely, 2^6390064 is an apocalyptic number.

It is an amenable number.

6390064 is a deficient number, since it is larger than the sum of its proper divisors (5990716).

6390064 is a wasteful number, since it uses less digits than its factorization.

6390064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399387 (or 399381 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 6390064 is about 2527.8575909256. The cubic root of 6390064 is about 185.5674226909.

The spelling of 6390064 in words is "six million, three hundred ninety thousand, sixty-four".