1063985877 has 24 divisors (see below), whose sum is σ = 1560483288. Its totient is φ = 698457600.

The previous prime is 1063985863. The next prime is 1063985887. The reversal of 1063985877 is 7785893601.

It can be written as a sum of positive squares in 4 ways, for example, as 350775441 + 713210436 = 18729^2 + 26706^2 .

It is not a de Polignac number, because 1063985877 - 2⁸ = 1063985621 is a prime.

It is a super-2 number, since 2×1063985877² = 2264131892910918258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063985827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617377 + ... + 619097.

It is an arithmetic number, because the mean of its divisors is an integer number (65020137).

Almost surely, 2^1063985877 is an apocalyptic number.

It is an amenable number.

1063985877 is a deficient number, since it is larger than the sum of its proper divisors (496497411).

1063985877 is a wasteful number, since it uses less digits than its factorization.

1063985877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2738 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The square root of 1063985877 is about 32618.7963757095. The cubic root of 1063985877 is about 1020.8892274372.

The spelling of 1063985877 in words is "one billion, sixty-three million, nine hundred eighty-five thousand, eight hundred seventy-seven".