4987438 has 4 divisors (see below), whose sum is σ = 7481160. Its totient is φ = 2493718.

The previous prime is 4987429. The next prime is 4987439. The reversal of 4987438 is 8347894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8347894 = 2 ⋅4173947.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4987394 and 4987403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246858 + ... + 1246861.

It is an arithmetic number, because the mean of its divisors is an integer number (1870290).

Almost surely, 2^4987438 is an apocalyptic number.

4987438 is a deficient number, since it is larger than the sum of its proper divisors (2493722).

4987438 is a wasteful number, since it uses less digits than its factorization.

4987438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493721.

The product of its digits is 193536, while the sum is 43.

The square root of 4987438 is about 2233.2572623860. The cubic root of 4987438 is about 170.8542697851.

The spelling of 4987438 in words is "four million, nine hundred eighty-seven thousand, four hundred thirty-eight".