2173822 has 32 divisors (see below), whose sum is σ = 4004352. Its totient is φ = 864864.

The previous prime is 2173819. The next prime is 2173877. The reversal of 2173822 is 2283712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13768 + ... + 13924.

It is an arithmetic number, because the mean of its divisors is an integer number (125136).

2^2173822 is an apocalyptic number.

2173822 is the 1204-th pentagonal number.

2173822 is a deficient number, since it is larger than the sum of its proper divisors (1830530).

2173822 is a wasteful number, since it uses less digits than its factorization.

2173822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232.

The product of its digits is 1344, while the sum is 25.

The square root of 2173822 is about 1474.3886868801. The cubic root of 2173822 is about 129.5412230932.

The spelling of 2173822 in words is "two million, one hundred seventy-three thousand, eight hundred twenty-two".