39796839 has 32 divisors (see below), whose sum is σ = 61716480. Its totient is φ = 25631640.

The previous prime is 39796837. The next prime is 39796859. The reversal of 39796839 is 93869793.

39796839 = 1118² + 1119² + ... + 1148².

39796839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39796839 - 2¹ = 39796837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39796837) 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 in 31 ways as a sum of consecutive naturals, for example, 67504 + ... + 68090.

It is an arithmetic number, because the mean of its divisors is an integer number (1928640).

Almost surely, 2^39796839 is an apocalyptic number.

39796839 is a deficient number, since it is larger than the sum of its proper divisors (21919641).

39796839 is an frugal number, since it uses more digits than its factorization.

39796839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 621 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 39796839 is about 6308.4735871683. The cubic root of 39796839 is about 341.4152056015.

The spelling of 39796839 in words is "thirty-nine million, seven hundred ninety-six thousand, eight hundred thirty-nine".