38649 has 8 divisors (see below), whose sum is σ = 55552. Its totient is φ = 23760.

The previous prime is 38639. The next prime is 38651. The reversal of 38649 is 94683.

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

It is not a de Polignac number, because 38649 - 2⁸ = 38393 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 38649.

It is not an unprimeable number, because it can be changed into a prime (38609) 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, 457 + ... + 534.

It is an arithmetic number, because the mean of its divisors is an integer number (6944).

2³⁸⁶⁴⁹ is an apocalyptic number.

38649 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38649 is a deficient number, since it is larger than the sum of its proper divisors (16903).

38649 is a wasteful number, since it uses less digits than its factorization.

38649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007.

The product of its digits is 5184, while the sum is 30.

The square root of 38649 is about 196.5934892106. The cubic root of 38649 is about 33.8100713426.

It can be divided in two parts, 386 and 49, that added together give a triangular number (435 = T₂₉).

The spelling of 38649 in words is "thirty-eight thousand, six hundred forty-nine".