39500047 has 4 divisors (see below), whose sum is σ = 39784360. Its totient is φ = 39215736.

The previous prime is 39500029. The next prime is 39500057. The reversal of 39500047 is 74000593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 39500047 - 2¹⁵ = 39467279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39499988 and 39500024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39500057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141948 + ... + 142225.

It is an arithmetic number, because the mean of its divisors is an integer number (9946090).

Almost surely, 2^39500047 is an apocalyptic number.

39500047 is a deficient number, since it is larger than the sum of its proper divisors (284313).

39500047 is a wasteful number, since it uses less digits than its factorization.

39500047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284312.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 39500047 is about 6284.9062841064. The cubic root of 39500047 is about 340.5643654605.

The spelling of 39500047 in words is "thirty-nine million, five hundred thousand, forty-seven".