10861899 has 12 divisors (see below), whose sum is σ = 14692776. Its totient is φ = 7137088.

The previous prime is 10861897. The next prime is 10861909. The reversal of 10861899 is 99816801.

It is not a de Polignac number, because 10861899 - 2¹ = 10861897 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 10861899.

It is not an unprimeable number, because it can be changed into a prime (10861897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60592 + ... + 60770.

It is an arithmetic number, because the mean of its divisors is an integer number (1224398).

Almost surely, 2^10861899 is an apocalyptic number.

10861899 is a deficient number, since it is larger than the sum of its proper divisors (3830877).

10861899 is an equidigital number, since it uses as much as digits as its factorization.

10861899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 10861899 is about 3295.7395224744. The cubic root of 10861899 is about 221.4633780476.

The spelling of 10861899 in words is "ten million, eight hundred sixty-one thousand, eight hundred ninety-nine".