38399147 has 4 divisors (see below), whose sum is σ = 39050040. Its totient is φ = 37748256.

The previous prime is 38399077. The next prime is 38399159. The reversal of 38399147 is 74199383.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74199383 = 7841 ⋅9463.

It is a cyclic number.

It is not a de Polignac number, because 38399147 - 2¹⁰ = 38398123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38399098 and 38399107.

It is not an unprimeable number, because it can be changed into a prime (38399177) 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, 325358 + ... + 325475.

It is an arithmetic number, because the mean of its divisors is an integer number (9762510).

Almost surely, 2^38399147 is an apocalyptic number.

38399147 is a deficient number, since it is larger than the sum of its proper divisors (650893).

38399147 is an equidigital number, since it uses as much as digits as its factorization.

38399147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650892.

The product of its digits is 163296, while the sum is 44.

The square root of 38399147 is about 6196.7045274081. The cubic root of 38399147 is about 337.3705680186.

The spelling of 38399147 in words is "thirty-eight million, three hundred ninety-nine thousand, one hundred forty-seven".