38398207 has 4 divisors (see below), whose sum is σ = 38860920. Its totient is φ = 37935496.

The previous prime is 38398177. The next prime is 38398211. The reversal of 38398207 is 70289383.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 38398207 - 2¹⁹ = 37873919 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 38398207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38398307) 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, 231232 + ... + 231397.

It is an arithmetic number, because the mean of its divisors is an integer number (9715230).

Almost surely, 2^38398207 is an apocalyptic number.

38398207 is a deficient number, since it is larger than the sum of its proper divisors (462713).

38398207 is an equidigital number, since it uses as much as digits as its factorization.

38398207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462712.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 38398207 is about 6196.6286801776. The cubic root of 38398207 is about 337.3678150849.

The spelling of 38398207 in words is "thirty-eight million, three hundred ninety-eight thousand, two hundred seven".