424023997 has 2 divisors, whose sum is σ = 424023998. Its totient is φ = 424023996.

The previous prime is 424023991. The next prime is 424024031. The reversal of 424023997 is 799320424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 353026521 + 70997476 = 18789^2 + 8426^2 .

It is a cyclic number.

It is not a de Polignac number, because 424023997 - 2⁷ = 424023869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424023991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212011998 + 212011999.

It is an arithmetic number, because the mean of its divisors is an integer number (212011999).

Almost surely, 2^424023997 is an apocalyptic number.

It is an amenable number.

424023997 is a deficient number, since it is larger than the sum of its proper divisors (1).

424023997 is an equidigital number, since it uses as much as digits as its factorization.

424023997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 424023997 is about 20591.8429724005. The cubic root of 424023997 is about 751.2713234682.

The spelling of 424023997 in words is "four hundred twenty-four million, twenty-three thousand, nine hundred ninety-seven".