38873391 has 4 divisors (see below), whose sum is σ = 51831192. Its totient is φ = 25915592.

The previous prime is 38873383. The next prime is 38873399. The reversal of 38873391 is 19337883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19337883 = 3 ⋅6445961.

It is an interprime number because it is at equal distance from previous prime (38873383) and next prime (38873399).

It is a cyclic number.

It is not a de Polignac number, because 38873391 - 2³ = 38873383 is a prime.

It is a super-2 number, since 2×38873391² = 3022281055677762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38873399) 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, 6478896 + ... + 6478901.

It is an arithmetic number, because the mean of its divisors is an integer number (12957798).

Almost surely, 2^38873391 is an apocalyptic number.

38873391 is a deficient number, since it is larger than the sum of its proper divisors (12957801).

38873391 is a wasteful number, since it uses less digits than its factorization.

38873391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12957800.

The product of its digits is 108864, while the sum is 42.

The square root of 38873391 is about 6234.8529252902. The cubic root of 38873391 is about 338.7537739171.

The spelling of 38873391 in words is "thirty-eight million, eight hundred seventy-three thousand, three hundred ninety-one".