424013987 has 2 divisors, whose sum is σ = 424013988. Its totient is φ = 424013986.

The previous prime is 424013911. The next prime is 424014029. The reversal of 424013987 is 789310424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424013987 - 2⁸ = 424013731 is a prime.

It is a super-2 number, since 2×424013987² = 359575722343272338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 424013987.

It is not a weakly prime, because it can be changed into another prime (424013687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212006993 + 212006994.

It is an arithmetic number, because the mean of its divisors is an integer number (212006994).

Almost surely, 2^424013987 is an apocalyptic number.

424013987 is a deficient number, since it is larger than the sum of its proper divisors (1).

424013987 is an equidigital number, since it uses as much as digits as its factorization.

424013987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 424013987 is about 20591.5999135570. The cubic root of 424013987 is about 751.2654116290.

The spelling of 424013987 in words is "four hundred twenty-four million, thirteen thousand, nine hundred eighty-seven".