39900719 has 2 divisors, whose sum is σ = 39900720. Its totient is φ = 39900718.

The previous prime is 39900701. The next prime is 39900739. The reversal of 39900719 is 91700993.

It is a happy number.

39900719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39900719 is a prime.

It is a super-2 number, since 2×39900719² = 3184134753433922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39900739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19950359 + 19950360.

It is an arithmetic number, because the mean of its divisors is an integer number (19950360).

Almost surely, 2^39900719 is an apocalyptic number.

39900719 is a deficient number, since it is larger than the sum of its proper divisors (1).

39900719 is an equidigital number, since it uses as much as digits as its factorization.

39900719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 39900719 is about 6316.7015918120. The cubic root of 39900719 is about 341.7120080483.

The spelling of 39900719 in words is "thirty-nine million, nine hundred thousand, seven hundred nineteen".