755663 has 2 divisors, whose sum is σ = 755664. Its totient is φ = 755662.

The previous prime is 755627. The next prime is 755681. The reversal of 755663 is 366557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 755663 - 2¹⁰ = 754639 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (755863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377831 + 377832.

It is an arithmetic number, because the mean of its divisors is an integer number (377832).

2⁷⁵⁵⁶⁶³ is an apocalyptic number.

755663 is a deficient number, since it is larger than the sum of its proper divisors (1).

755663 is an equidigital number, since it uses as much as digits as its factorization.

755663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 32.

The square root of 755663 is about 869.2887897586. The cubic root of 755663 is about 91.0841310269.

The spelling of 755663 in words is "seven hundred fifty-five thousand, six hundred sixty-three".