38487641 has 2 divisors, whose sum is σ = 38487642. Its totient is φ = 38487640.

The previous prime is 38487629. The next prime is 38487649. The reversal of 38487641 is 14678483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26265625 + 12222016 = 5125^2 + 3496^2 .

It is an emirp because it is prime and its reverse (14678483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38487641 - 2¹⁸ = 38225497 is a prime.

It is not a weakly prime, because it can be changed into another prime (38487649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19243820 + 19243821.

It is an arithmetic number, because the mean of its divisors is an integer number (19243821).

Almost surely, 2^38487641 is an apocalyptic number.

It is an amenable number.

38487641 is a deficient number, since it is larger than the sum of its proper divisors (1).

38487641 is an equidigital number, since it uses as much as digits as its factorization.

38487641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 38487641 is about 6203.8408264558. The cubic root of 38487641 is about 337.6295352792.

The spelling of 38487641 in words is "thirty-eight million, four hundred eighty-seven thousand, six hundred forty-one".