69072109 has 8 divisors (see below), whose sum is σ = 70790720. Its totient is φ = 67373856.

The previous prime is 69072097. The next prime is 69072119. The reversal of 69072109 is 90127096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69072109 - 2⁵ = 69072077 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69072119) 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, 1897 + ... + 11905.

It is an arithmetic number, because the mean of its divisors is an integer number (8848840).

Almost surely, 2^69072109 is an apocalyptic number.

It is an amenable number.

69072109 is a deficient number, since it is larger than the sum of its proper divisors (1718611).

69072109 is a wasteful number, since it uses less digits than its factorization.

69072109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 69072109 is about 8310.9631812444. The cubic root of 69072109 is about 410.2994223657.

The spelling of 69072109 in words is "sixty-nine million, seventy-two thousand, one hundred nine".