38878423 has 4 divisors (see below), whose sum is σ = 39136048. Its totient is φ = 38620800.

The previous prime is 38878417. The next prime is 38878471. The reversal of 38878423 is 32487883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32487883 = 193 ⋅168331.

It is a cyclic number.

It is not a de Polignac number, because 38878423 - 2⁵ = 38878391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38878423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38878403) 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, 128586 + ... + 128887.

It is an arithmetic number, because the mean of its divisors is an integer number (9784012).

Almost surely, 2^38878423 is an apocalyptic number.

38878423 is a deficient number, since it is larger than the sum of its proper divisors (257625).

38878423 is a wasteful number, since it uses less digits than its factorization.

38878423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257624.

The product of its digits is 258048, while the sum is 43.

The square root of 38878423 is about 6235.2564502192. The cubic root of 38878423 is about 338.7683900457.

The spelling of 38878423 in words is "thirty-eight million, eight hundred seventy-eight thousand, four hundred twenty-three".