424327591 has 2 divisors, whose sum is σ = 424327592. Its totient is φ = 424327590.

The previous prime is 424327583. The next prime is 424327643. The reversal of 424327591 is 195723424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424327591 - 2³ = 424327583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424327591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424327571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212163795 + 212163796.

It is an arithmetic number, because the mean of its divisors is an integer number (212163796).

Almost surely, 2^424327591 is an apocalyptic number.

424327591 is a deficient number, since it is larger than the sum of its proper divisors (1).

424327591 is an equidigital number, since it uses as much as digits as its factorization.

424327591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 424327591 is about 20599.2133587669. The cubic root of 424327591 is about 751.4505798745.

The spelling of 424327591 in words is "four hundred twenty-four million, three hundred twenty-seven thousand, five hundred ninety-one".