1622081 has 2 divisors, whose sum is σ = 1622082. Its totient is φ = 1622080.

The previous prime is 1622077. The next prime is 1622141. The reversal of 1622081 is 1802261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 982081 + 640000 = 991^2 + 800^2 .

It is an emirp because it is prime and its reverse (1802261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1622081 - 2² = 1622077 is a prime.

It is a super-2 number, since 2×1622081² = 5262293541122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1622041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811040 + 811041.

It is an arithmetic number, because the mean of its divisors is an integer number (811041).

2^1622081 is an apocalyptic number.

It is an amenable number.

1622081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622081 is an equidigital number, since it uses as much as digits as its factorization.

1622081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1622081 is about 1273.6094377791. The cubic root of 1622081 is about 117.4962968502.

The spelling of 1622081 in words is "one million, six hundred twenty-two thousand, eighty-one".