39187968 has 80 divisors (see below), whose sum is σ = 107897856. Its totient is φ = 12625920.

The previous prime is 39187957. The next prime is 39187969. The reversal of 39187968 is 86978193.

It is a self number, because there is not a number n which added to its sum of digits gives 39187968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39187969) by changing a digit.

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, 47205 + ... + 48027.

Almost surely, 2^39187968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39187968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53948928).

39187968 is an abundant number, since it is smaller than the sum of its proper divisors (68709888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39187968 is an equidigital number, since it uses as much as digits as its factorization.

39187968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 859 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 39187968 is about 6260.0293929022. The cubic root of 39187968 is about 339.6650912064.

The spelling of 39187968 in words is "thirty-nine million, one hundred eighty-seven thousand, nine hundred sixty-eight".