1422423973 has 2 divisors, whose sum is σ = 1422423974. Its totient is φ = 1422423972.

The previous prime is 1422423943. The next prime is 1422424019. The reversal of 1422423973 is 3793242241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104764644 + 317659329 = 33238^2 + 17823^2 .

It is an emirp because it is prime and its reverse (3793242241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1422423973 - 2²¹ = 1420326821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422423913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711211986 + 711211987.

It is an arithmetic number, because the mean of its divisors is an integer number (711211987).

Almost surely, 2^1422423973 is an apocalyptic number.

It is an amenable number.

1422423973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422423973 is an equidigital number, since it uses as much as digits as its factorization.

1422423973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 1422423973 is about 37715.0364311106. The cubic root of 1422423973 is about 1124.6300605536.

The spelling of 1422423973 in words is "one billion, four hundred twenty-two million, four hundred twenty-three thousand, nine hundred seventy-three".