39747996 has 84 divisors (see below), whose sum is σ = 107052792. Its totient is φ = 12900384.

The previous prime is 39747991. The next prime is 39748013. The reversal of 39747996 is 69974793.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39747991) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 125230 + ... + 125546.

It is an arithmetic number, because the mean of its divisors is an integer number (1274438).

Almost surely, 2^39747996 is an apocalyptic number.

39747996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39747996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53526396).

39747996 is an abundant number, since it is smaller than the sum of its proper divisors (67304796).

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

39747996 is a wasteful number, since it uses less digits than its factorization.

39747996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 365 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 39747996 is about 6304.6011769183. The cubic root of 39747996 is about 341.2754744900.

The spelling of 39747996 in words is "thirty-nine million, seven hundred forty-seven thousand, nine hundred ninety-six".