11687406 has 16 divisors (see below), whose sum is σ = 24181200. Its totient is φ = 3761408.

The previous prime is 11687399. The next prime is 11687407. The reversal of 11687406 is 60478611.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11687407) 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, 33411 + ... + 33758.

It is an arithmetic number, because the mean of its divisors is an integer number (1511325).

Almost surely, 2^11687406 is an apocalyptic number.

11687406 is an abundant number, since it is smaller than the sum of its proper divisors (12493794).

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

11687406 is a wasteful number, since it uses less digits than its factorization.

11687406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67203.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 11687406 is about 3418.6848348451. The cubic root of 11687406 is about 226.9373836751.

The spelling of 11687406 in words is "eleven million, six hundred eighty-seven thousand, four hundred six".