39288481 has 2 divisors, whose sum is σ = 39288482. Its totient is φ = 39288480.

The previous prime is 39288467. The next prime is 39288499. The reversal of 39288481 is 18488293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35224225 + 4064256 = 5935^2 + 2016^2 .

It is an emirp because it is prime and its reverse (18488293) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39288481 - 2¹³ = 39280289 is a prime.

It is a super-2 number, since 2×39288481² = 3087169478574722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39288401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19644240 + 19644241.

It is an arithmetic number, because the mean of its divisors is an integer number (19644241).

Almost surely, 2^39288481 is an apocalyptic number.

It is an amenable number.

39288481 is a deficient number, since it is larger than the sum of its proper divisors (1).

39288481 is an equidigital number, since it uses as much as digits as its factorization.

39288481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 43.

The square root of 39288481 is about 6268.0524088428. The cubic root of 39288481 is about 339.9552449741.

The spelling of 39288481 in words is "thirty-nine million, two hundred eighty-eight thousand, four hundred eighty-one".