39497039 has 2 divisors, whose sum is σ = 39497040. Its totient is φ = 39497038.

The previous prime is 39497023. The next prime is 39497041. The reversal of 39497039 is 93079493.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39497039 - 2⁴ = 39497023 is a prime.

Together with 39497041, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39497089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19748519 + 19748520.

It is an arithmetic number, because the mean of its divisors is an integer number (19748520).

Almost surely, 2^39497039 is an apocalyptic number.

39497039 is a deficient number, since it is larger than the sum of its proper divisors (1).

39497039 is an equidigital number, since it uses as much as digits as its factorization.

39497039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 39497039 is about 6284.6669760617. Note that the first 3 decimals coincide. The cubic root of 39497039 is about 340.5557203770. Note that the first 3 decimals are identical.

The spelling of 39497039 in words is "thirty-nine million, four hundred ninety-seven thousand, thirty-nine".