38813937 has 4 divisors (see below), whose sum is σ = 51751920. Its totient is φ = 25875956.

The previous prime is 38813927. The next prime is 38813947. The reversal of 38813937 is 73931883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (38813927) and next prime (38813947).

It is a cyclic number.

It is not a de Polignac number, because 38813937 - 2¹⁰ = 38812913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38813927) 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, 6468987 + ... + 6468992.

It is an arithmetic number, because the mean of its divisors is an integer number (12937980).

Almost surely, 2^38813937 is an apocalyptic number.

It is an amenable number.

38813937 is a deficient number, since it is larger than the sum of its proper divisors (12937983).

38813937 is a wasteful number, since it uses less digits than its factorization.

38813937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12937982.

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

The square root of 38813937 is about 6230.0832257683. The cubic root of 38813937 is about 338.5809861157.

The spelling of 38813937 in words is "thirty-eight million, eight hundred thirteen thousand, nine hundred thirty-seven".