544994686 has 4 divisors (see below), whose sum is σ = 817492032. Its totient is φ = 272497342.

The previous prime is 544994641. The next prime is 544994699. The reversal of 544994686 is 686499445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 686499445 = 5 ⋅137299889.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136248670 + ... + 136248673.

It is an arithmetic number, because the mean of its divisors is an integer number (204373008).

Almost surely, 2^544994686 is an apocalyptic number.

544994686 is a deficient number, since it is larger than the sum of its proper divisors (272497346).

544994686 is a wasteful number, since it uses less digits than its factorization.

544994686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272497345.

The product of its digits is 7464960, while the sum is 55.

The square root of 544994686 is about 23345.1212462047. The cubic root of 544994686 is about 816.8282621964.

The spelling of 544994686 in words is "five hundred forty-four million, nine hundred ninety-four thousand, six hundred eighty-six".