38426447 has 2 divisors, whose sum is σ = 38426448. Its totient is φ = 38426446.

The previous prime is 38426369. The next prime is 38426473. The reversal of 38426447 is 74462483.

It is a strong prime.

It is an emirp because it is prime and its reverse (74462483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38426447 - 2⁸ = 38426191 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38426447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38426347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19213223 + 19213224.

It is an arithmetic number, because the mean of its divisors is an integer number (19213224).

Almost surely, 2^38426447 is an apocalyptic number.

38426447 is a deficient number, since it is larger than the sum of its proper divisors (1).

38426447 is an equidigital number, since it uses as much as digits as its factorization.

38426447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 38.

The square root of 38426447 is about 6198.9069197722. The cubic root of 38426447 is about 337.4505006509.

The spelling of 38426447 in words is "thirty-eight million, four hundred twenty-six thousand, four hundred forty-seven".