39072869 has 16 divisors (see below), whose sum is σ = 43623360. Its totient is φ = 34700160.

The previous prime is 39072857. The next prime is 39072871. The reversal of 39072869 is 96827093.

It is a de Polignac number, because none of the positive numbers 2^k-39072869 is a prime.

It is a super-2 number, since 2×39072869² = 3053378183782322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39071869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104567 + ... + 104939.

It is an arithmetic number, because the mean of its divisors is an integer number (2726460).

Almost surely, 2^39072869 is an apocalyptic number.

It is an amenable number.

39072869 is a deficient number, since it is larger than the sum of its proper divisors (4550491).

39072869 is a wasteful number, since it uses less digits than its factorization.

39072869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 39072869 is about 6250.8294649590. The cubic root of 39072869 is about 339.3322216010.

It can be divided in two parts, 3907 and 2869, that added together give a palindrome (6776).

The spelling of 39072869 in words is "thirty-nine million, seventy-two thousand, eight hundred sixty-nine".