749663 has 6 divisors (see below), whose sum is σ = 765576. Its totient is φ = 734052.

The previous prime is 749659. The next prime is 749677. The reversal of 749663 is 366947.

It is not a de Polignac number, because 749663 - 2² = 749659 is a prime.

It is a super-2 number, since 2×749663² = 1123989227138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 749663.

It is not an unprimeable number, because it can be changed into a prime (749653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4406 + ... + 4572.

It is an arithmetic number, because the mean of its divisors is an integer number (127596).

2⁷⁴⁹⁶⁶³ is an apocalyptic number.

749663 is a deficient number, since it is larger than the sum of its proper divisors (15913).

749663 is an equidigital number, since it uses as much as digits as its factorization.

749663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 234 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 749663 is about 865.8308148824. The cubic root of 749663 is about 90.8424193887.

The spelling of 749663 in words is "seven hundred forty-nine thousand, six hundred sixty-three".