10861087 has 4 divisors (see below), whose sum is σ = 10960840. Its totient is φ = 10761336.

The previous prime is 10861073. The next prime is 10861093. The reversal of 10861087 is 78016801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10861087 - 2⁷ = 10860959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10861007) 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, 49713 + ... + 49930.

It is an arithmetic number, because the mean of its divisors is an integer number (2740210).

Almost surely, 2^10861087 is an apocalyptic number.

10861087 is a deficient number, since it is larger than the sum of its proper divisors (99753).

10861087 is an equidigital number, since it uses as much as digits as its factorization.

10861087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99752.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 10861087 is about 3295.6163308249. The cubic root of 10861087 is about 221.4578592844.

Adding to 10861087 its reverse (78016801), we get a palindrome (88877888).

The spelling of 10861087 in words is "ten million, eight hundred sixty-one thousand, eighty-seven".