422987713 has 2 divisors, whose sum is σ = 422987714. Its totient is φ = 422987712.

The previous prime is 422987711. The next prime is 422987729. The reversal of 422987713 is 317789224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415018384 + 7969329 = 20372^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 422987713 - 2¹ = 422987711 is a prime.

Together with 422987711, it forms a pair of twin primes.

It is equal to p_22494976 and since 422987713 and 22494976 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422987713.

It is not a weakly prime, because it can be changed into another prime (422987711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211493856 + 211493857.

It is an arithmetic number, because the mean of its divisors is an integer number (211493857).

Almost surely, 2^422987713 is an apocalyptic number.

It is an amenable number.

422987713 is a deficient number, since it is larger than the sum of its proper divisors (1).

422987713 is an equidigital number, since it uses as much as digits as its factorization.

422987713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 422987713 is about 20566.6650918422. The cubic root of 422987713 is about 750.6588066105.

The spelling of 422987713 in words is "four hundred twenty-two million, nine hundred eighty-seven thousand, seven hundred thirteen".