1029663 has 6 divisors (see below), whose sum is σ = 1487304. Its totient is φ = 686436.

The previous prime is 1029653. The next prime is 1029689. The reversal of 1029663 is 3669201.

It is a happy number.

It is not a de Polignac number, because 1029663 - 2⁴ = 1029647 is a prime.

1029663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029643) 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, 57195 + ... + 57212.

It is an arithmetic number, because the mean of its divisors is an integer number (247884).

2^1029663 is an apocalyptic number.

1029663 is a deficient number, since it is larger than the sum of its proper divisors (457641).

1029663 is a wasteful number, since it uses less digits than its factorization.

1029663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114413 (or 114410 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 1029663 is about 1014.7231149432. The cubic root of 1029663 is about 100.9791480660.

The spelling of 1029663 in words is "one million, twenty-nine thousand, six hundred sixty-three".