39696139 has 8 divisors (see below), whose sum is σ = 48035808. Its totient is φ = 32023680.

The previous prime is 39696113. The next prime is 39696143. The reversal of 39696139 is 93169693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39696139 - 2⁷ = 39696011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39696169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166672 + ... + 166909.

It is an arithmetic number, because the mean of its divisors is an integer number (6004476).

Almost surely, 2^39696139 is an apocalyptic number.

39696139 is a deficient number, since it is larger than the sum of its proper divisors (8339669).

39696139 is a wasteful number, since it uses less digits than its factorization.

39696139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333605.

The product of its digits is 236196, while the sum is 46.

The square root of 39696139 is about 6300.4872033836. The cubic root of 39696139 is about 341.1269955228.

The spelling of 39696139 in words is "thirty-nine million, six hundred ninety-six thousand, one hundred thirty-nine".