38987725 has 12 divisors (see below), whose sum is σ = 55251424. Its totient is φ = 26734320.

The previous prime is 38987699. The next prime is 38987743. The reversal of 38987725 is 52778983.

It is not a de Polignac number, because 38987725 - 2⁹ = 38987213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111219 + ... + 111568.

Almost surely, 2^38987725 is an apocalyptic number.

38987725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38987725 is a deficient number, since it is larger than the sum of its proper divisors (16263699).

38987725 is a wasteful number, since it uses less digits than its factorization.

38987725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222804 (or 222799 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 38987725 is about 6244.0151345108. The cubic root of 38987725 is about 339.0855618326.

The spelling of 38987725 in words is "thirty-eight million, nine hundred eighty-seven thousand, seven hundred twenty-five".