11722790 has 8 divisors (see below), whose sum is σ = 21101040. Its totient is φ = 4689112.

The previous prime is 11722783. The next prime is 11722811. The reversal of 11722790 is 9722711.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586130 + ... + 586149.

It is an arithmetic number, because the mean of its divisors is an integer number (2637630).

Almost surely, 2^11722790 is an apocalyptic number.

11722790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11722790 is a deficient number, since it is larger than the sum of its proper divisors (9378250).

11722790 is a wasteful number, since it uses less digits than its factorization.

11722790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172286.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 11722790 is about 3423.8560133277. The cubic root of 11722790 is about 227.1661730329.

The spelling of 11722790 in words is "eleven million, seven hundred twenty-two thousand, seven hundred ninety".