1063881 has 32 divisors (see below), whose sum is σ = 1944320. Its totient is φ = 559872.

The previous prime is 1063873. The next prime is 1063891. The reversal of 1063881 is 1883601.

It is not a de Polignac number, because 1063881 - 2³ = 1063873 is a prime.

It is a super-2 number, since 2×1063881² = 2263685564322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

1063881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1063831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2241 + ... + 2673.

It is an arithmetic number, because the mean of its divisors is an integer number (60760).

2^1063881 is an apocalyptic number.

It is an amenable number.

1063881 is a deficient number, since it is larger than the sum of its proper divisors (880439).

1063881 is a wasteful number, since it uses less digits than its factorization.

1063881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1063881 is about 1031.4460722694. The cubic root of 1063881 is about 102.0855683346.

The spelling of 1063881 in words is "one million, sixty-three thousand, eight hundred eighty-one".