11406989 has 8 divisors (see below), whose sum is σ = 12780768. Its totient is φ = 10089360.

The previous prime is 11406971. The next prime is 11406991. The reversal of 11406989 is 98960411.

It is a happy number.

11406989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11406989 is a prime.

It is a super-2 number, since 2×11406989² = 260238796092242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11406929) 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, 13607 + ... + 14420.

It is an arithmetic number, because the mean of its divisors is an integer number (1597596).

Almost surely, 2^11406989 is an apocalyptic number.

It is an amenable number.

11406989 is a deficient number, since it is larger than the sum of its proper divisors (1373779).

11406989 is a wasteful number, since it uses less digits than its factorization.

11406989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28075.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 11406989 is about 3377.4234262230. The cubic root of 11406989 is about 225.1076949463.

The spelling of 11406989 in words is "eleven million, four hundred six thousand, nine hundred eighty-nine".