10987818 has 16 divisors (see below), whose sum is σ = 22286016. Its totient is φ = 3610880.

The previous prime is 10987807. The next prime is 10987819. The reversal of 10987818 is 81878901.

10987818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10987818² = 241464288802248, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10987818.

It is not an unprimeable number, because it can be changed into a prime (10987819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12471 + ... + 13322.

It is an arithmetic number, because the mean of its divisors is an integer number (1392876).

Almost surely, 2^10987818 is an apocalyptic number.

10987818 is an abundant number, since it is smaller than the sum of its proper divisors (11298198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10987818 is a wasteful number, since it uses less digits than its factorization.

10987818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25869.

The product of its (nonzero) digits is 32256, while the sum is 42.

The square root of 10987818 is about 3314.7877760122. The cubic root of 10987818 is about 222.3158801695.

The spelling of 10987818 in words is "ten million, nine hundred eighty-seven thousand, eight hundred eighteen".