39494641 has 2 divisors, whose sum is σ = 39494642. Its totient is φ = 39494640.

The previous prime is 39494639. The next prime is 39494671. The reversal of 39494641 is 14649493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26998416 + 12496225 = 5196^2 + 3535^2 .

It is an emirp because it is prime and its reverse (14649493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39494641 - 2¹ = 39494639 is a prime.

Together with 39494639, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 39494594 and 39494603.

It is not a weakly prime, because it can be changed into another prime (39494671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19747320 + 19747321.

It is an arithmetic number, because the mean of its divisors is an integer number (19747321).

Almost surely, 2^39494641 is an apocalyptic number.

It is an amenable number.

39494641 is a deficient number, since it is larger than the sum of its proper divisors (1).

39494641 is an equidigital number, since it uses as much as digits as its factorization.

39494641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 39494641 is about 6284.4761913782. The cubic root of 39494641 is about 340.5488281376.

The spelling of 39494641 in words is "thirty-nine million, four hundred ninety-four thousand, six hundred forty-one".