72785361 has 8 divisors (see below), whose sum is σ = 105869664. Its totient is φ = 44112320.

The previous prime is 72785353. The next prime is 72785399. The reversal of 72785361 is 16358727.

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 72785361 - 2³ = 72785353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72785311) 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, 1102776 + ... + 1102841.

It is an arithmetic number, because the mean of its divisors is an integer number (13233708).

Almost surely, 2^72785361 is an apocalyptic number.

It is an amenable number.

72785361 is a deficient number, since it is larger than the sum of its proper divisors (33084303).

72785361 is a wasteful number, since it uses less digits than its factorization.

72785361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205631.

The product of its digits is 70560, while the sum is 39.

The square root of 72785361 is about 8531.4337013189. The cubic root of 72785361 is about 417.5239060259.

The spelling of 72785361 in words is "seventy-two million, seven hundred eighty-five thousand, three hundred sixty-one".