1063823965 has 16 divisors (see below), whose sum is σ = 1390118400. Its totient is φ = 778462272.

The previous prime is 1063823941. The next prime is 1063823989. The reversal of 1063823965 is 5693283601.

It is an interprime number because it is at equal distance from previous prime (1063823941) and next prime (1063823989).

It is a cyclic number.

It is not a de Polignac number, because 1063823965 - 2⁵ = 1063823933 is a prime.

It is a super-2 number, since 2×1063823965² = 2263442857016642450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190317 + ... + 195826.

It is an arithmetic number, because the mean of its divisors is an integer number (86882400).

Almost surely, 2^1063823965 is an apocalyptic number.

It is an amenable number.

1063823965 is a deficient number, since it is larger than the sum of its proper divisors (326294435).

1063823965 is a wasteful number, since it uses less digits than its factorization.

1063823965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386196.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 1063823965 is about 32616.3143993922. The cubic root of 1063823965 is about 1020.8374402204.

The spelling of 1063823965 in words is "one billion, sixty-three million, eight hundred twenty-three thousand, nine hundred sixty-five".