38961689 has 8 divisors (see below), whose sum is σ = 42060480. Its totient is φ = 35877456.

The previous prime is 38961683. The next prime is 38961709. The reversal of 38961689 is 98616983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38961689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38961683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294 + ... + 9120.

It is an arithmetic number, because the mean of its divisors is an integer number (5257560).

Almost surely, 2^38961689 is an apocalyptic number.

It is an amenable number.

38961689 is a deficient number, since it is larger than the sum of its proper divisors (3098791).

38961689 is a wasteful number, since it uses less digits than its factorization.

38961689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279.

The product of its digits is 559872, while the sum is 50.

The square root of 38961689 is about 6241.9299098917. The cubic root of 38961689 is about 339.0100645863.

The spelling of 38961689 in words is "thirty-eight million, nine hundred sixty-one thousand, six hundred eighty-nine".