38361643 has 2 divisors, whose sum is σ = 38361644. Its totient is φ = 38361642.

The previous prime is 38361607. The next prime is 38361649. The reversal of 38361643 is 34616383.

It is a strong prime.

It is an emirp because it is prime and its reverse (34616383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38361643 - 2¹³ = 38353451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38361599 and 38361608.

It is not a weakly prime, because it can be changed into another prime (38361649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19180821 + 19180822.

It is an arithmetic number, because the mean of its divisors is an integer number (19180822).

Almost surely, 2^38361643 is an apocalyptic number.

38361643 is a deficient number, since it is larger than the sum of its proper divisors (1).

38361643 is an equidigital number, since it uses as much as digits as its factorization.

38361643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 38361643 is about 6193.6776635534. The cubic root of 38361643 is about 337.2606969384.

It can be divided in two parts, 383 and 61643, that added together give a palindrome (62026).

The spelling of 38361643 in words is "thirty-eight million, three hundred sixty-one thousand, six hundred forty-three".