38197937 has 4 divisors (see below), whose sum is σ = 39129636. Its totient is φ = 37266240.

The previous prime is 38197931. The next prime is 38197967. The reversal of 38197937 is 73979183.

38197937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2961841 + 35236096 = 1721^2 + 5936^2 .

It is a cyclic number.

It is not a de Polignac number, because 38197937 - 2⁸ = 38197681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38197891 and 38197900.

It is not an unprimeable number, because it can be changed into a prime (38197931) 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 3 ways as a sum of consecutive naturals, for example, 465788 + ... + 465869.

It is an arithmetic number, because the mean of its divisors is an integer number (9782409).

Almost surely, 2^38197937 is an apocalyptic number.

It is an amenable number.

38197937 is a deficient number, since it is larger than the sum of its proper divisors (931699).

38197937 is an equidigital number, since it uses as much as digits as its factorization.

38197937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931698.

The product of its digits is 285768, while the sum is 47.

The square root of 38197937 is about 6180.4479611109. The cubic root of 38197937 is about 336.7802663186.

The spelling of 38197937 in words is "thirty-eight million, one hundred ninety-seven thousand, nine hundred thirty-seven".