38147399 has 2 divisors, whose sum is σ = 38147400. Its totient is φ = 38147398.

The previous prime is 38147359. The next prime is 38147411. The reversal of 38147399 is 99374183.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38147399 - 2¹⁶ = 38081863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38147359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19073699 + 19073700.

It is an arithmetic number, because the mean of its divisors is an integer number (19073700).

Almost surely, 2^38147399 is an apocalyptic number.

38147399 is a deficient number, since it is larger than the sum of its proper divisors (1).

38147399 is an equidigital number, since it uses as much as digits as its factorization.

38147399 is an odious number, because the sum of its binary digits is odd.

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

The square root of 38147399 is about 6176.3580692832. The cubic root of 38147399 is about 336.6316744121.

The spelling of 38147399 in words is "thirty-eight million, one hundred forty-seven thousand, three hundred ninety-nine".