6364642 has 4 divisors (see below), whose sum is σ = 9546966. Its totient is φ = 3182320.

The previous prime is 6364637. The next prime is 6364649. The reversal of 6364642 is 2464636.

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

It can be written as a sum of positive squares in only one way, i.e., 5574321 + 790321 = 2361^2 + 889^2 .

It is not an unprimeable number, because it can be changed into a prime (6364649) 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 as a sum of consecutive naturals, namely, 1591159 + ... + 1591162.

Almost surely, 2^6364642 is an apocalyptic number.

6364642 is a deficient number, since it is larger than the sum of its proper divisors (3182324).

6364642 is a wasteful number, since it uses less digits than its factorization.

6364642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182323.

The product of its digits is 20736, while the sum is 31.

The square root of 6364642 is about 2522.8242110777. The cubic root of 6364642 is about 185.3210107168.

The spelling of 6364642 in words is "six million, three hundred sixty-four thousand, six hundred forty-two".