38800091 has 4 divisors (see below), whose sum is σ = 42327384. Its totient is φ = 35272800.

The previous prime is 38800079. The next prime is 38800129. The reversal of 38800091 is 19000883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38800091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38800691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763630 + ... + 1763651.

It is an arithmetic number, because the mean of its divisors is an integer number (10581846).

Almost surely, 2^38800091 is an apocalyptic number.

38800091 is a deficient number, since it is larger than the sum of its proper divisors (3527293).

38800091 is a wasteful number, since it uses less digits than its factorization.

38800091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527292.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 38800091 is about 6228.9719055395. The cubic root of 38800091 is about 338.5407209407.

The spelling of 38800091 in words is "thirty-eight million, eight hundred thousand, ninety-one".