39652217 has 4 divisors (see below), whose sum is σ = 43256976. Its totient is φ = 36047460.

The previous prime is 39652201. The next prime is 39652229. The reversal of 39652217 is 71225693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39652217 - 2⁴ = 39652201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39652237) 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, 1802363 + ... + 1802384.

It is an arithmetic number, because the mean of its divisors is an integer number (10814244).

Almost surely, 2^39652217 is an apocalyptic number.

It is an amenable number.

39652217 is a deficient number, since it is larger than the sum of its proper divisors (3604759).

39652217 is a wasteful number, since it uses less digits than its factorization.

39652217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604758.

The product of its digits is 22680, while the sum is 35.

The square root of 39652217 is about 6297.0006352231. Note that the first 3 decimals coincide. The cubic root of 39652217 is about 341.0011351774.

It can be divided in two parts, 39 and 652217, that added together give a palindrome (652256).

The spelling of 39652217 in words is "thirty-nine million, six hundred fifty-two thousand, two hundred seventeen".