38978263 has 8 divisors (see below), whose sum is σ = 41332032. Its totient is φ = 36631296.

The previous prime is 38978257. The next prime is 38978273. The reversal of 38978263 is 36287983.

38978263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38978263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38978243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14706 + ... + 17152.

It is an arithmetic number, because the mean of its divisors is an integer number (5166504).

Almost surely, 2^38978263 is an apocalyptic number.

38978263 is a deficient number, since it is larger than the sum of its proper divisors (2353769).

38978263 is a wasteful number, since it uses less digits than its factorization.

38978263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401.

The product of its digits is 435456, while the sum is 46.

The square root of 38978263 is about 6243.2574029908. The cubic root of 38978263 is about 339.0581285214.

The spelling of 38978263 in words is "thirty-eight million, nine hundred seventy-eight thousand, two hundred sixty-three".