39240961 has 2 divisors, whose sum is σ = 39240962. Its totient is φ = 39240960.

The previous prime is 39240937. The next prime is 39240991. The reversal of 39240961 is 16904293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39187600 + 53361 = 6260^2 + 231^2 .

It is a cyclic number.

It is not a de Polignac number, because 39240961 - 2⁹ = 39240449 is a prime.

It is not a weakly prime, because it can be changed into another prime (39240991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19620480 + 19620481.

It is an arithmetic number, because the mean of its divisors is an integer number (19620481).

Almost surely, 2^39240961 is an apocalyptic number.

It is an amenable number.

39240961 is a deficient number, since it is larger than the sum of its proper divisors (1).

39240961 is an equidigital number, since it uses as much as digits as its factorization.

39240961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 39240961 is about 6264.2606107984. The cubic root of 39240961 is about 339.8181293759.

The spelling of 39240961 in words is "thirty-nine million, two hundred forty thousand, nine hundred sixty-one".