4128487 has 8 divisors (see below), whose sum is σ = 4649472. Its totient is φ = 3631800.

The previous prime is 4128451. The next prime is 4128493. The reversal of 4128487 is 7848214.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4128487 - 2⁷ = 4128359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5713 + ... + 6394.

It is an arithmetic number, because the mean of its divisors is an integer number (581184).

Almost surely, 2^4128487 is an apocalyptic number.

4128487 is a deficient number, since it is larger than the sum of its proper divisors (520985).

4128487 is a wasteful number, since it uses less digits than its factorization.

4128487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12149.

The product of its digits is 14336, while the sum is 34.

The square root of 4128487 is about 2031.8678598767. The cubic root of 4128487 is about 160.4218943668.

The spelling of 4128487 in words is "four million, one hundred twenty-eight thousand, four hundred eighty-seven".