39648071 has 4 divisors (see below), whose sum is σ = 40056912. Its totient is φ = 39239232.

The previous prime is 39648061. The next prime is 39648083. The reversal of 39648071 is 17084693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17084693 = 3001 ⋅5693.

It is a cyclic number.

It is not a de Polignac number, because 39648071 - 2¹⁴ = 39631687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39648001) 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, 204275 + ... + 204468.

It is an arithmetic number, because the mean of its divisors is an integer number (10014228).

Almost surely, 2^39648071 is an apocalyptic number.

39648071 is a deficient number, since it is larger than the sum of its proper divisors (408841).

39648071 is an equidigital number, since it uses as much as digits as its factorization.

39648071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408840.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 39648071 is about 6296.6714222675. The cubic root of 39648071 is about 340.9892498395.

The spelling of 39648071 in words is "thirty-nine million, six hundred forty-eight thousand, seventy-one".