11421686 has 8 divisors (see below), whose sum is σ = 17302464. Its totient is φ = 5654200.

The previous prime is 11421677. The next prime is 11421689. The reversal of 11421686 is 68612411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11421686² = 260909822165192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28070 + ... + 28473.

It is an arithmetic number, because the mean of its divisors is an integer number (2162808).

Almost surely, 2^11421686 is an apocalyptic number.

11421686 is a deficient number, since it is larger than the sum of its proper divisors (5880778).

11421686 is a wasteful number, since it uses less digits than its factorization.

11421686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56646.

The product of its digits is 2304, while the sum is 29.

The square root of 11421686 is about 3379.5984968632. The cubic root of 11421686 is about 225.2043312551.

The spelling of 11421686 in words is "eleven million, four hundred twenty-one thousand, six hundred eighty-six".