39995029 has 2 divisors, whose sum is σ = 39995030. Its totient is φ = 39995028.

The previous prime is 39995023. The next prime is 39995069. The reversal of 39995029 is 92059993.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39816100 + 178929 = 6310^2 + 423^2 .

It is a cyclic number.

It is not a de Polignac number, because 39995029 - 2⁷ = 39994901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39995029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39995023) 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, 19997514 + 19997515.

It is an arithmetic number, because the mean of its divisors is an integer number (19997515).

Almost surely, 2^39995029 is an apocalyptic number.

It is an amenable number.

39995029 is a deficient number, since it is larger than the sum of its proper divisors (1).

39995029 is an equidigital number, since it uses as much as digits as its factorization.

39995029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196830, while the sum is 46.

The square root of 39995029 is about 6324.1623160700. The cubic root of 39995029 is about 341.9810215977.

The spelling of 39995029 in words is "thirty-nine million, nine hundred ninety-five thousand, twenty-nine".