72012349 has 8 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 69524400.

The previous prime is 72012341. The next prime is 72012407. The reversal of 72012349 is 94321027.

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 72012349 - 2³ = 72012341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72012341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11772 + ... + 16810.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^72012349 is an apocalyptic number.

It is an amenable number.

72012349 is a deficient number, since it is larger than the sum of its proper divisors (2499011).

72012349 is a wasteful number, since it uses less digits than its factorization.

72012349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 72012349 is about 8486.0090148432. The cubic root of 72012349 is about 416.0405474684.

It can be divided in two parts, 72012 and 349, that added together give a square (72361 = 269²).

The spelling of 72012349 in words is "seventy-two million, twelve thousand, three hundred forty-nine".