38949 has 4 divisors (see below), whose sum is σ = 51936. Its totient is φ = 25964.

The previous prime is 38933. The next prime is 38953. The reversal of 38949 is 94983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38949 - 2⁴ = 38933 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

38949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6489 + ... + 6494.

It is an arithmetic number, because the mean of its divisors is an integer number (12984).

2³⁸⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

38949 is a deficient number, since it is larger than the sum of its proper divisors (12987).

38949 is a wasteful number, since it uses less digits than its factorization.

38949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12986.

The product of its digits is 7776, while the sum is 33.

The square root of 38949 is about 197.3550100707. The cubic root of 38949 is about 33.8973257782.

The spelling of 38949 in words is "thirty-eight thousand, nine hundred forty-nine".