424621399 has 2 divisors, whose sum is σ = 424621400. Its totient is φ = 424621398.

The previous prime is 424621391. The next prime is 424621409. The reversal of 424621399 is 993126424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424621399 - 2³ = 424621391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424621391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212310699 + 212310700.

It is an arithmetic number, because the mean of its divisors is an integer number (212310700).

Almost surely, 2^424621399 is an apocalyptic number.

424621399 is a deficient number, since it is larger than the sum of its proper divisors (1).

424621399 is an equidigital number, since it uses as much as digits as its factorization.

424621399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 424621399 is about 20606.3436591745. The cubic root of 424621399 is about 751.6239767650.

The spelling of 424621399 in words is "four hundred twenty-four million, six hundred twenty-one thousand, three hundred ninety-nine".