424689997 has 2 divisors, whose sum is σ = 424689998. Its totient is φ = 424689996.

The previous prime is 424689989. The next prime is 424690031. The reversal of 424689997 is 799986424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422466916 + 2223081 = 20554^2 + 1491^2 .

It is a cyclic number.

It is not a de Polignac number, because 424689997 - 2³ = 424689989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424489997) 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, 212344998 + 212344999.

It is an arithmetic number, because the mean of its divisors is an integer number (212344999).

Almost surely, 2^424689997 is an apocalyptic number.

It is an amenable number.

424689997 is a deficient number, since it is larger than the sum of its proper divisors (1).

424689997 is an equidigital number, since it uses as much as digits as its factorization.

424689997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 58.

The square root of 424689997 is about 20608.0080793851. The cubic root of 424689997 is about 751.6644497804.

The spelling of 424689997 in words is "four hundred twenty-four million, six hundred eighty-nine thousand, nine hundred ninety-seven".