39000069 has 8 divisors (see below), whose sum is σ = 57777920. Its totient is φ = 26000028.

The previous prime is 39000053. The next prime is 39000079. The reversal of 39000069 is 96000093.

It is not a de Polignac number, because 39000069 - 2⁴ = 39000053 is a prime.

It is a super-2 number, since 2×39000069² = 3042010764009522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1444447 = 39000069 / (3 + 9 + 0 + 0 + 0 + 0 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39000079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722197 + ... + 722250.

It is an arithmetic number, because the mean of its divisors is an integer number (7222240).

Almost surely, 2^39000069 is an apocalyptic number.

It is an amenable number.

39000069 is a deficient number, since it is larger than the sum of its proper divisors (18777851).

39000069 is a wasteful number, since it uses less digits than its factorization.

39000069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444456 (or 1444450 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 39000069 is about 6245.0035228173. The cubic root of 39000069 is about 339.1213442958.

The spelling of 39000069 in words is "thirty-nine million, sixty-nine", and thus it is an aban number and an uban number.