1422979 has 2 divisors, whose sum is σ = 1422980. Its totient is φ = 1422978.

The previous prime is 1422977. The next prime is 1422991. The reversal of 1422979 is 9792241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1422979 - 2¹ = 1422977 is a prime.

Together with 1422977, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1422973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711489 + 711490.

It is an arithmetic number, because the mean of its divisors is an integer number (711490).

2^1422979 is an apocalyptic number.

1422979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422979 is an equidigital number, since it uses as much as digits as its factorization.

1422979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 1422979 is about 1192.8868345321. The cubic root of 1422979 is about 112.4776317668.

It can be divided in two parts, 1422 and 979, that added together give a 4-th power (2401 = 7⁴).

The spelling of 1422979 in words is "one million, four hundred twenty-two thousand, nine hundred seventy-nine".