39900563 has 2 divisors, whose sum is σ = 39900564. Its totient is φ = 39900562.

The previous prime is 39900533. The next prime is 39900571. The reversal of 39900563 is 36500993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39900563 - 2⁶ = 39900499 is a prime.

It is not a weakly prime, because it can be changed into another prime (39900533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19950281 + 19950282.

It is an arithmetic number, because the mean of its divisors is an integer number (19950282).

Almost surely, 2^39900563 is an apocalyptic number.

39900563 is a deficient number, since it is larger than the sum of its proper divisors (1).

39900563 is an equidigital number, since it uses as much as digits as its factorization.

39900563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 39900563 is about 6316.6892435832. The cubic root of 39900563 is about 341.7115627168.

The spelling of 39900563 in words is "thirty-nine million, nine hundred thousand, five hundred sixty-three".