11490861 has 16 divisors (see below), whose sum is σ = 16308864. Its totient is φ = 7171584.

The previous prime is 11490859. The next prime is 11490887. The reversal of 11490861 is 16809411.

It is not a de Polignac number, because 11490861 - 2¹ = 11490859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11490851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11400 + ... + 12366.

It is an arithmetic number, because the mean of its divisors is an integer number (1019304).

Almost surely, 2^11490861 is an apocalyptic number.

It is an amenable number.

11490861 is a deficient number, since it is larger than the sum of its proper divisors (4818003).

11490861 is a wasteful number, since it uses less digits than its factorization.

11490861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 11490861 is about 3389.8172517114. The cubic root of 11490861 is about 225.6580635907.

The spelling of 11490861 in words is "eleven million, four hundred ninety thousand, eight hundred sixty-one".