39824985 has 8 divisors (see below), whose sum is σ = 63720000. Its totient is φ = 21239984.

The previous prime is 39824963. The next prime is 39824989. The reversal of 39824985 is 58942893.

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 39824985 - 2⁶ = 39824921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39824989) 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, 1327485 + ... + 1327514.

It is an arithmetic number, because the mean of its divisors is an integer number (7965000).

Almost surely, 2^39824985 is an apocalyptic number.

It is an amenable number.

39824985 is a deficient number, since it is larger than the sum of its proper divisors (23895015).

39824985 is a wasteful number, since it uses less digits than its factorization.

39824985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655007.

The product of its digits is 622080, while the sum is 48.

The square root of 39824985 is about 6310.7040019320. The cubic root of 39824985 is about 341.4956743698.

The spelling of 39824985 in words is "thirty-nine million, eight hundred twenty-four thousand, nine hundred eighty-five".