761530663 has 4 divisors (see below), whose sum is σ = 768647880. Its totient is φ = 754413448.

The previous prime is 761530639. The next prime is 761530673. The reversal of 761530663 is 366035167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366035167 = 41 ⋅8927687.

It is a cyclic number.

It is not a de Polignac number, because 761530663 - 2⁵ = 761530631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761530673) 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 in 3 ways as a sum of consecutive naturals, for example, 3558448 + ... + 3558661.

It is an arithmetic number, because the mean of its divisors is an integer number (192161970).

Almost surely, 2^761530663 is an apocalyptic number.

761530663 is a deficient number, since it is larger than the sum of its proper divisors (7117217).

761530663 is a wasteful number, since it uses less digits than its factorization.

761530663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7117216.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 761530663 is about 27595.8450314536. The cubic root of 761530663 is about 913.1927711682.

The spelling of 761530663 in words is "seven hundred sixty-one million, five hundred thirty thousand, six hundred sixty-three".