39747948 has 24 divisors (see below), whose sum is σ = 92847552. Its totient is φ = 13234704.

The previous prime is 39747941. The next prime is 39747949. The reversal of 39747948 is 84974793.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39747948.

It is not an unprimeable number, because it can be changed into a prime (39747941) 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, 19011 + ... + 20997.

It is an arithmetic number, because the mean of its divisors is an integer number (3868648).

Almost surely, 2^39747948 is an apocalyptic number.

It is an amenable number.

39747948 is an abundant number, since it is smaller than the sum of its proper divisors (53099604).

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

39747948 is a wasteful number, since it uses less digits than its factorization.

39747948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661 (or 3659 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 39747948 is about 6304.5973701736. The cubic root of 39747948 is about 341.2753371143.

The spelling of 39747948 in words is "thirty-nine million, seven hundred forty-seven thousand, nine hundred forty-eight".