424437491 has 2 divisors, whose sum is σ = 424437492. Its totient is φ = 424437490.

The previous prime is 424437479. The next prime is 424437527. The reversal of 424437491 is 194734424.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424437491 - 2⁶ = 424437427 is a prime.

It is a Chen prime.

It is equal to p_22568096 and since 424437491 and 22568096 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (424437421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212218745 + 212218746.

It is an arithmetic number, because the mean of its divisors is an integer number (212218746).

Almost surely, 2^424437491 is an apocalyptic number.

424437491 is a deficient number, since it is larger than the sum of its proper divisors (1).

424437491 is an equidigital number, since it uses as much as digits as its factorization.

424437491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 38.

The square root of 424437491 is about 20601.8807636584. The cubic root of 424437491 is about 751.5154490085.

The spelling of 424437491 in words is "four hundred twenty-four million, four hundred thirty-seven thousand, four hundred ninety-one".