1922867 has 2 divisors, whose sum is σ = 1922868. Its totient is φ = 1922866.

The previous prime is 1922863. The next prime is 1922873. The reversal of 1922867 is 7682291.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1922867 - 2² = 1922863 is a prime.

It is not a weakly prime, because it can be changed into another prime (1922863) 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 as a sum of consecutive naturals, namely, 961433 + 961434.

It is an arithmetic number, because the mean of its divisors is an integer number (961434).

2^1922867 is an apocalyptic number.

1922867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922867 is an equidigital number, since it uses as much as digits as its factorization.

1922867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 1922867 is about 1386.6747996556. The cubic root of 1922867 is about 124.3511336073.

The spelling of 1922867 in words is "one million, nine hundred twenty-two thousand, eight hundred sixty-seven".