38725661 has 8 divisors (see below), whose sum is σ = 41796384. Its totient is φ = 35668080.

The previous prime is 38725651. The next prime is 38725691. The reversal of 38725661 is 16652783.

38725661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38725661 - 2⁶ = 38725597 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 (38725651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3350 + ... + 9416.

It is an arithmetic number, because the mean of its divisors is an integer number (5224548).

Almost surely, 2^38725661 is an apocalyptic number.

It is an amenable number.

38725661 is a deficient number, since it is larger than the sum of its proper divisors (3070723).

38725661 is a wasteful number, since it uses less digits than its factorization.

38725661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571.

The product of its digits is 60480, while the sum is 38.

The square root of 38725661 is about 6222.9945363948. The cubic root of 38725661 is about 338.3241087754.

The spelling of 38725661 in words is "thirty-eight million, seven hundred twenty-five thousand, six hundred sixty-one".