39896905 has 8 divisors (see below), whose sum is σ = 48989952. Its totient is φ = 31175088.

The previous prime is 39896893. The next prime is 39896963. The reversal of 39896905 is 50969893.

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 39896905 - 2⁵ = 39896873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 92569 + ... + 92998.

It is an arithmetic number, because the mean of its divisors is an integer number (6123744).

Almost surely, 2^39896905 is an apocalyptic number.

It is an amenable number.

39896905 is a deficient number, since it is larger than the sum of its proper divisors (9093047).

39896905 is a wasteful number, since it uses less digits than its factorization.

39896905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185615.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 39896905 is about 6316.3996865303. The cubic root of 39896905 is about 341.7011199310.

The spelling of 39896905 in words is "thirty-nine million, eight hundred ninety-six thousand, nine hundred five".