1422691 has 2 divisors, whose sum is σ = 1422692. Its totient is φ = 1422690.

The previous prime is 1422677. The next prime is 1422709. The reversal of 1422691 is 1962241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1422691 - 2⁷ = 1422563 is a prime.

It is equal to p₁₀₈₆₇₃ and since 1422691 and 108673 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1422601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711345 + 711346.

It is an arithmetic number, because the mean of its divisors is an integer number (711346).

2^1422691 is an apocalyptic number.

1422691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422691 is an equidigital number, since it uses as much as digits as its factorization.

1422691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 1422691 is about 1192.7661128654. The cubic root of 1422691 is about 112.4700430525.

The spelling of 1422691 in words is "one million, four hundred twenty-two thousand, six hundred ninety-one".