72893285 has 16 divisors (see below), whose sum is σ = 91309680. Its totient is φ = 55810560.

The previous prime is 72893243. The next prime is 72893311. The reversal of 72893285 is 58239827.

It can be written as a sum of positive squares in 8 ways, for example, as 1760929 + 71132356 = 1327^2 + 8434^2 .

It is not a de Polignac number, because 72893285 - 2¹⁴ = 72876901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7511 + ... + 14219.

It is an arithmetic number, because the mean of its divisors is an integer number (5706855).

Almost surely, 2^72893285 is an apocalyptic number.

It is an amenable number.

72893285 is a deficient number, since it is larger than the sum of its proper divisors (18416395).

72893285 is a wasteful number, since it uses less digits than its factorization.

72893285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808.

The product of its digits is 241920, while the sum is 44.

The square root of 72893285 is about 8537.7564383156. The cubic root of 72893285 is about 417.7301681831.

The spelling of 72893285 in words is "seventy-two million, eight hundred ninety-three thousand, two hundred eighty-five".