544400663 has 2 divisors, whose sum is σ = 544400664. Its totient is φ = 544400662.

The previous prime is 544400657. The next prime is 544400713. The reversal of 544400663 is 366004445.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544400663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544403663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272200331 + 272200332.

It is an arithmetic number, because the mean of its divisors is an integer number (272200332).

Almost surely, 2^544400663 is an apocalyptic number.

544400663 is a deficient number, since it is larger than the sum of its proper divisors (1).

544400663 is an equidigital number, since it uses as much as digits as its factorization.

544400663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 544400663 is about 23332.3951406623. The cubic root of 544400663 is about 816.5313839683.

The spelling of 544400663 in words is "five hundred forty-four million, four hundred thousand, six hundred sixty-three".