1622873 has 4 divisors (see below), whose sum is σ = 1854720. Its totient is φ = 1391028.

The previous prime is 1622867. The next prime is 1622879. The reversal of 1622873 is 3782261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1622867) and next prime (1622879).

It is a cyclic number.

It is not a de Polignac number, because 1622873 - 2⁸ = 1622617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1622879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115913 + ... + 115926.

It is an arithmetic number, because the mean of its divisors is an integer number (463680).

2^1622873 is an apocalyptic number.

It is an amenable number.

1622873 is a deficient number, since it is larger than the sum of its proper divisors (231847).

1622873 is an equidigital number, since it uses as much as digits as its factorization.

1622873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231846.

The product of its digits is 4032, while the sum is 29.

The square root of 1622873 is about 1273.9203271791. The cubic root of 1622873 is about 117.5154167187.

The spelling of 1622873 in words is "one million, six hundred twenty-two thousand, eight hundred seventy-three".