1622275 has 6 divisors (see below), whose sum is σ = 2011652. Its totient is φ = 1297800.

The previous prime is 1622273. The next prime is 1622287. The reversal of 1622275 is 5722261.

It is not a de Polignac number, because 1622275 - 2¹ = 1622273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 64891 = 1622275 / (1 + 6 + 2 + 2 + 2 + 7 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32421 + ... + 32470.

2^1622275 is an apocalyptic number.

1622275 is a deficient number, since it is larger than the sum of its proper divisors (389377).

1622275 is an equidigital number, since it uses as much as digits as its factorization.

1622275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64901 (or 64896 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 1622275 is about 1273.6855969979. The cubic root of 1622275 is about 117.5009808278.

The spelling of 1622275 in words is "one million, six hundred twenty-two thousand, two hundred seventy-five".