39487538 has 4 divisors (see below), whose sum is σ = 59231310. Its totient is φ = 19743768.

The previous prime is 39487519. The next prime is 39487543. The reversal of 39487538 is 83578493.

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

It can be written as a sum of positive squares in only one way, i.e., 39476089 + 11449 = 6283^2 + 107^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39487492 and 39487501.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9871883 + ... + 9871886.

Almost surely, 2^39487538 is an apocalyptic number.

39487538 is a deficient number, since it is larger than the sum of its proper divisors (19743772).

39487538 is a wasteful number, since it uses less digits than its factorization.

39487538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19743771.

The product of its digits is 725760, while the sum is 47.

The square root of 39487538 is about 6283.9110432914. The cubic root of 39487538 is about 340.5284113309.

The spelling of 39487538 in words is "thirty-nine million, four hundred eighty-seven thousand, five hundred thirty-eight".