39440963 has 2 divisors, whose sum is σ = 39440964. Its totient is φ = 39440962.

The previous prime is 39440923. The next prime is 39440971. The reversal of 39440963 is 36904493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39440963 - 2⁸ = 39440707 is a prime.

It is not a weakly prime, because it can be changed into another prime (39440923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19720481 + 19720482.

It is an arithmetic number, because the mean of its divisors is an integer number (19720482).

Almost surely, 2^39440963 is an apocalyptic number.

39440963 is a deficient number, since it is larger than the sum of its proper divisors (1).

39440963 is an equidigital number, since it uses as much as digits as its factorization.

39440963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 39440963 is about 6280.2040571943. The cubic root of 39440963 is about 340.3944758224.

The spelling of 39440963 in words is "thirty-nine million, four hundred forty thousand, nine hundred sixty-three".