11722645 has 8 divisors (see below), whose sum is σ = 15346080. Its totient is φ = 8525520.

The previous prime is 11722643. The next prime is 11722649. The reversal of 11722645 is 54622711.

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

It is not a de Polignac number, because 11722645 - 2¹ = 11722643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11722643) 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, 106515 + ... + 106624.

It is an arithmetic number, because the mean of its divisors is an integer number (1918260).

Almost surely, 2^11722645 is an apocalyptic number.

It is an amenable number.

11722645 is a deficient number, since it is larger than the sum of its proper divisors (3623435).

11722645 is a wasteful number, since it uses less digits than its factorization.

11722645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213155.

The product of its digits is 3360, while the sum is 28.

The square root of 11722645 is about 3423.8348383063. The cubic root of 11722645 is about 227.1652364177.

The spelling of 11722645 in words is "eleven million, seven hundred twenty-two thousand, six hundred forty-five".