6661822 has 8 divisors (see below), whose sum is σ = 10337400. Its totient is φ = 3216024.

The previous prime is 6661783. The next prime is 6661849. The reversal of 6661822 is 2281666.

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, 57372 + ... + 57487.

It is an arithmetic number, because the mean of its divisors is an integer number (1292175).

Almost surely, 2^6661822 is an apocalyptic number.

6661822 is a deficient number, since it is larger than the sum of its proper divisors (3675578).

6661822 is a wasteful number, since it uses less digits than its factorization.

6661822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114890.

The product of its digits is 6912, while the sum is 31.

The square root of 6661822 is about 2581.0505613025. The cubic root of 6661822 is about 188.1616046695.

The spelling of 6661822 in words is "six million, six hundred sixty-one thousand, eight hundred twenty-two".