72256859 has 2 divisors, whose sum is σ = 72256860. Its totient is φ = 72256858.

The previous prime is 72256843. The next prime is 72256889. The reversal of 72256859 is 95865227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72256859 - 2⁴ = 72256843 is a prime.

It is a super-3 number, since 3×72256859³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (72256889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36128429 + 36128430.

It is an arithmetic number, because the mean of its divisors is an integer number (36128430).

Almost surely, 2^72256859 is an apocalyptic number.

72256859 is a deficient number, since it is larger than the sum of its proper divisors (1).

72256859 is an equidigital number, since it uses as much as digits as its factorization.

72256859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 72256859 is about 8500.4034610129. The cubic root of 72256859 is about 416.5108888249.

The spelling of 72256859 in words is "seventy-two million, two hundred fifty-six thousand, eight hundred fifty-nine".