39687948 has 48 divisors (see below), whose sum is σ = 104076000. Its totient is φ = 13077504.

The previous prime is 39687929. The next prime is 39687953. The reversal of 39687948 is 84978693.

39687948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 39687894 and 39687903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7548 + ... + 11676.

It is an arithmetic number, because the mean of its divisors is an integer number (2168250).

Almost surely, 2^39687948 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 39687948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52038000).

39687948 is an abundant number, since it is smaller than the sum of its proper divisors (64388052).

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

39687948 is a wasteful number, since it uses less digits than its factorization.

39687948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4231 (or 4223 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 39687948 is about 6299.8371407521. The cubic root of 39687948 is about 341.1035309114.

The spelling of 39687948 in words is "thirty-nine million, six hundred eighty-seven thousand, nine hundred forty-eight".