38969091 has 24 divisors (see below), whose sum is σ = 64546560. Its totient is φ = 22193136.

The previous prime is 38969059. The next prime is 38969113. The reversal of 38969091 is 19096983.

It is not a de Polignac number, because 38969091 - 2⁵ = 38969059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38964091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21756 + ... + 23478.

It is an arithmetic number, because the mean of its divisors is an integer number (2689440).

Almost surely, 2^38969091 is an apocalyptic number.

38969091 is a deficient number, since it is larger than the sum of its proper divisors (25577469).

38969091 is a wasteful number, since it uses less digits than its factorization.

38969091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095 (or 2092 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 38969091 is about 6242.5228073272. The cubic root of 38969091 is about 339.0315317735.

The spelling of 38969091 in words is "thirty-eight million, nine hundred sixty-nine thousand, ninety-one".