11801685 has 16 divisors (see below), whose sum is σ = 21580416. Its totient is φ = 5395008.

The previous prime is 11801663. The next prime is 11801693. The reversal of 11801685 is 58610811.

It is a happy number.

It is not a de Polignac number, because 11801685 - 2⁸ = 11801429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56094 + ... + 56303.

It is an arithmetic number, because the mean of its divisors is an integer number (1348776).

Almost surely, 2^11801685 is an apocalyptic number.

11801685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11801685 is a deficient number, since it is larger than the sum of its proper divisors (9778731).

11801685 is a wasteful number, since it uses less digits than its factorization.

11801685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112412.

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 11801685 is about 3435.3580599408. The cubic root of 11801685 is about 227.6746475207.

The spelling of 11801685 in words is "eleven million, eight hundred one thousand, six hundred eighty-five".