11906564 has 24 divisors (see below), whose sum is σ = 21638400. Its totient is φ = 5728320.

The previous prime is 11906561. The next prime is 11906567. The reversal of 11906564 is 46560911.

It is an interprime number because it is at equal distance from previous prime (11906561) and next prime (11906567).

It is a super-3 number, since 3×11906564³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11906564.

It is not an unprimeable number, because it can be changed into a prime (11906561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12497 + ... + 13415.

It is an arithmetic number, because the mean of its divisors is an integer number (901600).

Almost surely, 2^11906564 is an apocalyptic number.

It is an amenable number.

11906564 is a deficient number, since it is larger than the sum of its proper divisors (9731836).

11906564 is a wasteful number, since it uses less digits than its factorization.

11906564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 11906564 is about 3450.5889352399. The cubic root of 11906564 is about 228.3470911253.

The spelling of 11906564 in words is "eleven million, nine hundred six thousand, five hundred sixty-four".