72893185 has 8 divisors (see below), whose sum is σ = 87595560. Its totient is φ = 58232064.

The previous prime is 72893147. The next prime is 72893189. The reversal of 72893185 is 58139827.

It can be written as a sum of positive squares in 4 ways, for example, as 45603009 + 27290176 = 6753^2 + 5224^2 .

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 72893185 - 2⁷ = 72893057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72893189) 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, 6280 + ... + 13609.

It is an arithmetic number, because the mean of its divisors is an integer number (10949445).

Almost surely, 2^72893185 is an apocalyptic number.

It is an amenable number.

72893185 is a deficient number, since it is larger than the sum of its proper divisors (14702375).

72893185 is a wasteful number, since it uses less digits than its factorization.

72893185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20627.

The product of its digits is 120960, while the sum is 43.

The square root of 72893185 is about 8537.7505819742. The cubic root of 72893185 is about 417.7299771594.

The spelling of 72893185 in words is "seventy-two million, eight hundred ninety-three thousand, one hundred eighty-five".