38664291 has 8 divisors (see below), whose sum is σ = 51758784. Its totient is φ = 25673000.

The previous prime is 38664287. The next prime is 38664313. The reversal of 38664291 is 19246683.

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 38664291 - 2² = 38664287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38664281) 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, 24921 + ... + 26426.

It is an arithmetic number, because the mean of its divisors is an integer number (6469848).

Almost surely, 2^38664291 is an apocalyptic number.

38664291 is a deficient number, since it is larger than the sum of its proper divisors (13094493).

38664291 is a wasteful number, since it uses less digits than its factorization.

38664291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51601.

The product of its digits is 62208, while the sum is 39.

The square root of 38664291 is about 6218.0616754741. The cubic root of 38664291 is about 338.1452960052.

The spelling of 38664291 in words is "thirty-eight million, six hundred sixty-four thousand, two hundred ninety-one".