10587881 has 4 divisors (see below), whose sum is σ = 10846164. Its totient is φ = 10329600.

The previous prime is 10587877. The next prime is 10587887. The reversal of 10587881 is 18878501.

10587881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18878501 = 3947 ⋅4783.

It can be written as a sum of positive squares in 2 ways, for example, as 5107600 + 5480281 = 2260^2 + 2341^2 .

It is a cyclic number.

It is not a de Polignac number, because 10587881 - 2² = 10587877 is a prime.

It is a super-2 number, since 2×10587881² = 224206448140322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10587887) 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, 129080 + ... + 129161.

It is an arithmetic number, because the mean of its divisors is an integer number (2711541).

Almost surely, 2^10587881 is an apocalyptic number.

It is an amenable number.

10587881 is a deficient number, since it is larger than the sum of its proper divisors (258283).

10587881 is an equidigital number, since it uses as much as digits as its factorization.

10587881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258282.

The product of its (nonzero) digits is 17920, while the sum is 38.

The square root of 10587881 is about 3253.9024263183. The cubic root of 10587881 is about 219.5851756134.

The spelling of 10587881 in words is "ten million, five hundred eighty-seven thousand, eight hundred eighty-one".