72914609 has 8 divisors (see below), whose sum is σ = 77545440. Its totient is φ = 68363136.

The previous prime is 72914603. The next prime is 72914617. The reversal of 72914609 is 90641927.

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 72914609 - 2⁸ = 72914353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72914603) 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, 17939 + ... + 21624.

It is an arithmetic number, because the mean of its divisors is an integer number (9693180).

Almost surely, 2^72914609 is an apocalyptic number.

It is an amenable number.

72914609 is a deficient number, since it is larger than the sum of its proper divisors (4630831).

72914609 is a wasteful number, since it uses less digits than its factorization.

72914609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39679.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 72914609 is about 8539.0051528266. The cubic root of 72914609 is about 417.7708980878.

The spelling of 72914609 in words is "seventy-two million, nine hundred fourteen thousand, six hundred nine".