11406663 has 14 divisors (see below), whose sum is σ = 17103264. Its totient is φ = 7603956.

The previous prime is 11406649. The next prime is 11406671. The reversal of 11406663 is 36660411.

11406663 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11406663 - 2²¹ = 9309511 is a prime.

It is a super-2 number, since 2×11406663² = 260223921591138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11406613) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 7095 + ... + 8552.

Almost surely, 2^11406663 is an apocalyptic number.

11406663 is a deficient number, since it is larger than the sum of its proper divisors (5696601).

11406663 is an frugal number, since it uses more digits than its factorization.

11406663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665 (or 15650 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 11406663 is about 3377.3751642363. The cubic root of 11406663 is about 225.1055504771.

The spelling of 11406663 in words is "eleven million, four hundred six thousand, six hundred sixty-three".