424886987 has 12 divisors (see below), whose sum is σ = 520270920. Its totient is φ = 345020256.

The previous prime is 424886953. The next prime is 424886989. The reversal of 424886987 is 789688424.

It is not a de Polignac number, because 424886987 - 2⁶ = 424886923 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (424886989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227258 + ... + 229119.

It is an arithmetic number, because the mean of its divisors is an integer number (43355910).

Almost surely, 2^424886987 is an apocalyptic number.

424886987 is a deficient number, since it is larger than the sum of its proper divisors (95383933).

424886987 is a wasteful number, since it uses less digits than its factorization.

424886987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456410 (or 456403 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 56.

The square root of 424886987 is about 20612.7869779901. The cubic root of 424886987 is about 751.7806502192.

The spelling of 424886987 in words is "four hundred twenty-four million, eight hundred eighty-six thousand, nine hundred eighty-seven".