39747672 has 40 divisors (see below), whose sum is σ = 111332100. Its totient is φ = 13249008.

The previous prime is 39747671. The next prime is 39747689. The reversal of 39747672 is 27674793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39747671) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30022 + ... + 31317.

Almost surely, 2^39747672 is an apocalyptic number.

It is an amenable number.

39747672 is an abundant number, since it is smaller than the sum of its proper divisors (71584428).

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

39747672 is a wasteful number, since it uses less digits than its factorization.

39747672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61357 (or 61344 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 39747672 is about 6304.5754813469. The cubic root of 39747672 is about 341.2745472017.

The spelling of 39747672 in words is "thirty-nine million, seven hundred forty-seven thousand, six hundred seventy-two".