38963805 has 32 divisors (see below), whose sum is σ = 64327296. Its totient is φ = 20127744.

The previous prime is 38963801. The next prime is 38963819. The reversal of 38963805 is 50836983.

It is not a de Polignac number, because 38963805 - 2² = 38963801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38963801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124329 + ... + 124641.

It is an arithmetic number, because the mean of its divisors is an integer number (2010228).

Almost surely, 2^38963805 is an apocalyptic number.

It is an amenable number.

38963805 is a deficient number, since it is larger than the sum of its proper divisors (25363491).

38963805 is a wasteful number, since it uses less digits than its factorization.

38963805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 38963805 is about 6242.0994064497. The cubic root of 38963805 is about 339.0162016604.

The spelling of 38963805 in words is "thirty-eight million, nine hundred sixty-three thousand, eight hundred five".