72339069 has 8 divisors (see below), whose sum is σ = 105220512. Its totient is φ = 43841840.

The previous prime is 72339041. The next prime is 72339077. The reversal of 72339069 is 96093327.

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 72339069 - 2⁷ = 72338941 is a prime.

It is a super-2 number, since 2×72339069² = 10465881807573522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72339019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096014 + ... + 1096079.

It is an arithmetic number, because the mean of its divisors is an integer number (13152564).

Almost surely, 2^72339069 is an apocalyptic number.

It is an amenable number.

72339069 is a deficient number, since it is larger than the sum of its proper divisors (32881443).

72339069 is a wasteful number, since it uses less digits than its factorization.

72339069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192107.

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 72339069 is about 8505.2377391817. The cubic root of 72339069 is about 416.6687902470.

The spelling of 72339069 in words is "seventy-two million, three hundred thirty-nine thousand, sixty-nine".