4987429 has 2 divisors, whose sum is σ = 4987430. Its totient is φ = 4987428.

The previous prime is 4987427. The next prime is 4987439. The reversal of 4987429 is 9247894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3323329 + 1664100 = 1823^2 + 1290^2 .

It is a cyclic number.

It is not a de Polignac number, because 4987429 - 2¹ = 4987427 is a prime.

Together with 4987427, it forms a pair of twin primes.

4987429 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4987427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493714 + 2493715.

It is an arithmetic number, because the mean of its divisors is an integer number (2493715).

Almost surely, 2^4987429 is an apocalyptic number.

It is an amenable number.

4987429 is a deficient number, since it is larger than the sum of its proper divisors (1).

4987429 is an equidigital number, since it uses as much as digits as its factorization.

4987429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 4987429 is about 2233.2552473911. The cubic root of 4987429 is about 170.8541670143.

It can be divided in two parts, 49 and 87429, that added together give a palindrome (87478).

The spelling of 4987429 in words is "four million, nine hundred eighty-seven thousand, four hundred twenty-nine".