72006285 has 16 divisors (see below), whose sum is σ = 124072704. Its totient is φ = 35449152.

The previous prime is 72006281. The next prime is 72006287. The reversal of 72006285 is 58260027.

It is not a de Polignac number, because 72006285 - 2² = 72006281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72006281) 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 15 ways as a sum of consecutive naturals, for example, 184437 + ... + 184826.

It is an arithmetic number, because the mean of its divisors is an integer number (7754544).

Almost surely, 2^72006285 is an apocalyptic number.

It is an amenable number.

72006285 is a deficient number, since it is larger than the sum of its proper divisors (52066419).

72006285 is a wasteful number, since it uses less digits than its factorization.

72006285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369284.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 72006285 is about 8485.6517133335. The cubic root of 72006285 is about 416.0288691904.

The spelling of 72006285 in words is "seventy-two million, six thousand, two hundred eighty-five".