544242647 has 4 divisors (see below), whose sum is σ = 586107480. Its totient is φ = 502377816.

The previous prime is 544242599. The next prime is 544242649. The reversal of 544242647 is 746242445.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544242647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 544242647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544242649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20932397 + ... + 20932422.

It is an arithmetic number, because the mean of its divisors is an integer number (146526870).

Almost surely, 2^544242647 is an apocalyptic number.

544242647 is a deficient number, since it is larger than the sum of its proper divisors (41864833).

544242647 is a wasteful number, since it uses less digits than its factorization.

544242647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41864832.

The product of its digits is 215040, while the sum is 38.

The square root of 544242647 is about 23329.0087016144. The cubic root of 544242647 is about 816.4523750585.

The spelling of 544242647 in words is "five hundred forty-four million, two hundred forty-two thousand, six hundred forty-seven".