38987646 has 32 divisors (see below), whose sum is σ = 80898048. Its totient is φ = 12513120.

The previous prime is 38987623. The next prime is 38987659. The reversal of 38987646 is 64678983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48520 + ... + 49316.

It is an arithmetic number, because the mean of its divisors is an integer number (2528064).

Almost surely, 2^38987646 is an apocalyptic number.

38987646 is an abundant number, since it is smaller than the sum of its proper divisors (41910402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38987646 is a wasteful number, since it uses less digits than its factorization.

38987646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096.

The product of its digits is 1741824, while the sum is 51.

The square root of 38987646 is about 6244.0088084499. The cubic root of 38987646 is about 339.0853328052.

The spelling of 38987646 in words is "thirty-eight million, nine hundred eighty-seven thousand, six hundred forty-six".