39880647 has 8 divisors (see below), whose sum is σ = 59082480. Its totient is φ = 26587080.

The previous prime is 39880613. The next prime is 39880661. The reversal of 39880647 is 74608893.

It is a happy number.

It is not a de Polignac number, because 39880647 - 2⁶ = 39880583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39880697) 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, 738504 + ... + 738557.

It is an arithmetic number, because the mean of its divisors is an integer number (7385310).

Almost surely, 2^39880647 is an apocalyptic number.

39880647 is a deficient number, since it is larger than the sum of its proper divisors (19201833).

39880647 is a wasteful number, since it uses less digits than its factorization.

39880647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477070 (or 1477064 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 39880647 is about 6315.1125880700. The cubic root of 39880647 is about 341.6546991908.

The spelling of 39880647 in words is "thirty-nine million, eight hundred eighty thousand, six hundred forty-seven".