1035663 has 4 divisors (see below), whose sum is σ = 1380888. Its totient is φ = 690440.

The previous prime is 1035659. The next prime is 1035707. The reversal of 1035663 is 3665301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3665301 = 3 ⋅1221767.

It is a cyclic number.

It is not a de Polignac number, because 1035663 - 2² = 1035659 is a prime.

It is a super-3 number, since 3×1035663³ = 3332549720034537741, which contains 333 as substring.

It is a D-number.

1035663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1035613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172608 + ... + 172613.

It is an arithmetic number, because the mean of its divisors is an integer number (345222).

2^1035663 is an apocalyptic number.

1035663 is a deficient number, since it is larger than the sum of its proper divisors (345225).

1035663 is an equidigital number, since it uses as much as digits as its factorization.

1035663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345224.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1035663 is about 1017.6752920259. The cubic root of 1035663 is about 101.1749085049.

The spelling of 1035663 in words is "one million, thirty-five thousand, six hundred sixty-three".