1022897 has 4 divisors (see below), whose sum is σ = 1037376. Its totient is φ = 1008420.

The previous prime is 1022891. The next prime is 1022899. The reversal of 1022897 is 7982201.

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 a cyclic number.

It is not a de Polignac number, because 1022897 - 2⁴ = 1022881 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7133 + ... + 7274.

It is an arithmetic number, because the mean of its divisors is an integer number (259344).

2^1022897 is an apocalyptic number.

It is an amenable number.

1022897 is a deficient number, since it is larger than the sum of its proper divisors (14479).

1022897 is an equidigital number, since it uses as much as digits as its factorization.

1022897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14478.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1022897 is about 1011.3837056231. The cubic root of 1022897 is about 100.7574810701.

The spelling of 1022897 in words is "one million, twenty-two thousand, eight hundred ninety-seven".