38208197 has 4 divisors (see below), whose sum is σ = 40455756. Its totient is φ = 35960640.

The previous prime is 38208193. The next prime is 38208217. The reversal of 38208197 is 79180283.

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 20349121 + 17859076 = 4511^2 + 4226^2 .

It is a cyclic number.

It is not a de Polignac number, because 38208197 - 2² = 38208193 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 38208197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38208193) 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, 1123754 + ... + 1123787.

It is an arithmetic number, because the mean of its divisors is an integer number (10113939).

Almost surely, 2^38208197 is an apocalyptic number.

It is an amenable number.

38208197 is a deficient number, since it is larger than the sum of its proper divisors (2247559).

38208197 is a wasteful number, since it uses less digits than its factorization.

38208197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247558.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 38208197 is about 6181.2779423029. The cubic root of 38208197 is about 336.8104167794.

The spelling of 38208197 in words is "thirty-eight million, two hundred eight thousand, one hundred ninety-seven".