6550394 has 4 divisors (see below), whose sum is σ = 9825594. Its totient is φ = 3275196.

The previous prime is 6550367. The next prime is 6550403. The reversal of 6550394 is 4930556.

It is a happy number.

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., 6315169 + 235225 = 2513^2 + 485^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6550394.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1637597 + ... + 1637600.

Almost surely, 2^6550394 is an apocalyptic number.

6550394 is a deficient number, since it is larger than the sum of its proper divisors (3275200).

6550394 is a wasteful number, since it uses less digits than its factorization.

6550394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275199.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 6550394 is about 2559.3737515259. The cubic root of 6550394 is about 187.1066146404.

The spelling of 6550394 in words is "six million, five hundred fifty thousand, three hundred ninety-four".