424187689 has 16 divisors (see below), whose sum is σ = 471132288. Its totient is φ = 379869952.

The previous prime is 424187683. The next prime is 424187707. The reversal of 424187689 is 986781424.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 424187689 - 2⁵ = 424187657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (424187683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74274 + ... + 79780.

It is an arithmetic number, because the mean of its divisors is an integer number (29445768).

Almost surely, 2^424187689 is an apocalyptic number.

It is an amenable number.

424187689 is a deficient number, since it is larger than the sum of its proper divisors (46944599).

424187689 is a wasteful number, since it uses less digits than its factorization.

424187689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744.

The product of its digits is 774144, while the sum is 49.

The square root of 424187689 is about 20595.8172695332. The cubic root of 424187689 is about 751.3679856736.

The spelling of 424187689 in words is "four hundred twenty-four million, one hundred eighty-seven thousand, six hundred eighty-nine".