39066491 has 2 divisors, whose sum is σ = 39066492. Its totient is φ = 39066490.

The previous prime is 39066463. The next prime is 39066529. The reversal of 39066491 is 19466093.

It is an a-pointer prime, because the next prime (39066529) can be obtained adding 39066491 to its sum of digits (38).

It is a weak prime.

It is an emirp because it is prime and its reverse (19466093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39066491 - 2¹⁸ = 38804347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39066421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19533245 + 19533246.

It is an arithmetic number, because the mean of its divisors is an integer number (19533246).

Almost surely, 2^39066491 is an apocalyptic number.

39066491 is a deficient number, since it is larger than the sum of its proper divisors (1).

39066491 is an equidigital number, since it uses as much as digits as its factorization.

39066491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 39066491 is about 6250.3192718452. The cubic root of 39066491 is about 339.3137571376.

The spelling of 39066491 in words is "thirty-nine million, sixty-six thousand, four hundred ninety-one".