38966943 has 8 divisors (see below), whose sum is σ = 52275328. Its totient is φ = 25818264.

The previous prime is 38966903. The next prime is 38966951. The reversal of 38966943 is 34966983.

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

It is not a de Polignac number, because 38966943 - 2¹⁰ = 38965919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38966892 and 38966901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38966903) 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, 39355 + ... + 40332.

It is an arithmetic number, because the mean of its divisors is an integer number (6534416).

Almost surely, 2^38966943 is an apocalyptic number.

38966943 is a deficient number, since it is larger than the sum of its proper divisors (13308385).

38966943 is a wasteful number, since it uses less digits than its factorization.

38966943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79853.

The product of its digits is 839808, while the sum is 48.

The square root of 38966943 is about 6242.3507591291. The cubic root of 38966943 is about 339.0253024509.

The spelling of 38966943 in words is "thirty-eight million, nine hundred sixty-six thousand, nine hundred forty-three".