1622297 has 2 divisors, whose sum is σ = 1622298. Its totient is φ = 1622296.

The previous prime is 1622287. The next prime is 1622311. The reversal of 1622297 is 7922261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1478656 + 143641 = 1216^2 + 379^2 .

It is an emirp because it is prime and its reverse (7922261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1622297 - 2⁶ = 1622233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1622207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811148 + 811149.

It is an arithmetic number, because the mean of its divisors is an integer number (811149).

2^1622297 is an apocalyptic number.

It is an amenable number.

1622297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622297 is an equidigital number, since it uses as much as digits as its factorization.

1622297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 1622297 is about 1273.6942333229. The cubic root of 1622297 is about 117.5015119769.

The spelling of 1622297 in words is "one million, six hundred twenty-two thousand, two hundred ninety-seven".