6390650 has 72 divisors (see below), whose sum is σ = 14775840. Its totient is φ = 2008800.

The previous prime is 6390641. The next prime is 6390653. The reversal of 6390650 is 560936.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6390653) 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 35 ways as a sum of consecutive naturals, for example, 206135 + ... + 206165.

It is an arithmetic number, because the mean of its divisors is an integer number (205220).

Almost surely, 2^6390650 is an apocalyptic number.

6390650 is an abundant number, since it is smaller than the sum of its proper divisors (8385190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6390650 is a wasteful number, since it uses less digits than its factorization.

6390650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 6390650 is about 2527.9734966965. The cubic root of 6390650 is about 185.5730949964.

The spelling of 6390650 in words is "six million, three hundred ninety thousand, six hundred fifty".