39985795 has 4 divisors (see below), whose sum is σ = 47982960. Its totient is φ = 31988632.

The previous prime is 39985787. The next prime is 39985837. The reversal of 39985795 is 59758993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59758993 = 7 ⋅8536999.

It is a cyclic number.

It is not a de Polignac number, because 39985795 - 2³ = 39985787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3998575 + ... + 3998584.

It is an arithmetic number, because the mean of its divisors is an integer number (11995740).

Almost surely, 2^39985795 is an apocalyptic number.

39985795 is a deficient number, since it is larger than the sum of its proper divisors (7997165).

39985795 is an equidigital number, since it uses as much as digits as its factorization.

39985795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7997164.

The product of its digits is 3061800, while the sum is 55.

The square root of 39985795 is about 6323.4322167633. The cubic root of 39985795 is about 341.9547008616.

The spelling of 39985795 in words is "thirty-nine million, nine hundred eighty-five thousand, seven hundred ninety-five".