38945487 has 48 divisors (see below), whose sum is σ = 65422080. Its totient is φ = 20111616.

The previous prime is 38945483. The next prime is 38945503. The reversal of 38945487 is 78454983.

It is not a de Polignac number, because 38945487 - 2² = 38945483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38945483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 660064 + ... + 660122.

It is an arithmetic number, because the mean of its divisors is an integer number (1362960).

Almost surely, 2^38945487 is an apocalyptic number.

38945487 is a deficient number, since it is larger than the sum of its proper divisors (26476593).

38945487 is a wasteful number, since it uses less digits than its factorization.

38945487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 129 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 38945487 is about 6240.6319391549. The cubic root of 38945487 is about 338.9630662593.

The spelling of 38945487 in words is "thirty-eight million, nine hundred forty-five thousand, four hundred eighty-seven".