4638487 has 12 divisors (see below), whose sum is σ = 5435976. Its totient is φ = 3946320.

The previous prime is 4638461. The next prime is 4638509. The reversal of 4638487 is 7848364.

It is not a de Polignac number, because 4638487 - 2¹⁵ = 4605719 is a prime.

4638487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638407) 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, 8608 + ... + 9130.

It is an arithmetic number, because the mean of its divisors is an integer number (452998).

Almost surely, 2^4638487 is an apocalyptic number.

4638487 is a deficient number, since it is larger than the sum of its proper divisors (797489).

4638487 is a wasteful number, since it uses less digits than its factorization.

4638487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 711 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 4638487 is about 2153.7146979115. The cubic root of 4638487 is about 166.7728873997.

The spelling of 4638487 in words is "four million, six hundred thirty-eight thousand, four hundred eighty-seven".