424765993 has 2 divisors, whose sum is σ = 424765994. Its totient is φ = 424765992.

The previous prime is 424765981. The next prime is 424766057. The reversal of 424765993 is 399567424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379782144 + 44983849 = 19488^2 + 6707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424765993 is a prime.

It is a super-2 number, since 2×424765993² = 360852297618552098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424765933) 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, 212382996 + 212382997.

It is an arithmetic number, because the mean of its divisors is an integer number (212382997).

Almost surely, 2^424765993 is an apocalyptic number.

It is an amenable number.

424765993 is a deficient number, since it is larger than the sum of its proper divisors (1).

424765993 is an equidigital number, since it uses as much as digits as its factorization.

424765993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 49.

The square root of 424765993 is about 20609.8518432326. The cubic root of 424765993 is about 751.7092825486.

The spelling of 424765993 in words is "four hundred twenty-four million, seven hundred sixty-five thousand, nine hundred ninety-three".