39000961 has 2 divisors, whose sum is σ = 39000962. Its totient is φ = 39000960.

The previous prime is 39000931. The next prime is 39000971. The reversal of 39000961 is 16900093.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25310961 + 13690000 = 5031^2 + 3700^2 .

It is a cyclic number.

It is not a de Polignac number, because 39000961 - 2²¹ = 36903809 is a prime.

It is not a weakly prime, because it can be changed into another prime (39000931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19500480 + 19500481.

It is an arithmetic number, because the mean of its divisors is an integer number (19500481).

Almost surely, 2^39000961 is an apocalyptic number.

It is an amenable number.

39000961 is a deficient number, since it is larger than the sum of its proper divisors (1).

39000961 is an equidigital number, since it uses as much as digits as its factorization.

39000961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 39000961 is about 6245.0749395023. The cubic root of 39000961 is about 339.1239297095.

The spelling of 39000961 in words is "thirty-nine million, nine hundred sixty-one", and thus it is an aban number.