11722888 has 8 divisors (see below), whose sum is σ = 21980430. Its totient is φ = 5861440.

The previous prime is 11722871. The next prime is 11722901. The reversal of 11722888 is 88822711.

It can be written as a sum of positive squares in only one way, i.e., 11142244 + 580644 = 3338^2 + 762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11722888² = 274852206121088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 732673 + ... + 732688.

Almost surely, 2^11722888 is an apocalyptic number.

It is an amenable number.

11722888 is a deficient number, since it is larger than the sum of its proper divisors (10257542).

11722888 is a wasteful number, since it uses less digits than its factorization.

11722888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465367 (or 1465363 counting only the distinct ones).

The product of its digits is 14336, while the sum is 37.

The square root of 11722888 is about 3423.8703246472. The cubic root of 11722888 is about 227.1668060512.

It can be divided in two parts, 117 and 22888, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 11722888 in words is "eleven million, seven hundred twenty-two thousand, eight hundred eighty-eight".