38987487 has 120 divisors (see below), whose sum is σ = 79453440. Its totient is φ = 18779040.

The previous prime is 38987441. The next prime is 38987503. The reversal of 38987487 is 78478983.

38987487 is a `hidden beast` number, since 3 + 89 + 87 + 487 = 666.

It is not a de Polignac number, because 38987487 - 2⁷ = 38987359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38987437) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 829498 + ... + 829544.

It is an arithmetic number, because the mean of its divisors is an integer number (662112).

Almost surely, 2^38987487 is an apocalyptic number.

38987487 is an abundant number, since it is smaller than the sum of its proper divisors (40465953).

38987487 is a wasteful number, since it uses less digits than its factorization.

38987487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 87 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 38987487 is about 6243.9960762320. The cubic root of 38987487 is about 339.0848718502.

The spelling of 38987487 in words is "thirty-eight million, nine hundred eighty-seven thousand, four hundred eighty-seven".