72026839 has 2 divisors, whose sum is σ = 72026840. Its totient is φ = 72026838.

The previous prime is 72026821. The next prime is 72026861. The reversal of 72026839 is 93862027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72026839 - 2⁷ = 72026711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72026798 and 72026807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72026039) 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 as a sum of consecutive naturals, namely, 36013419 + 36013420.

It is an arithmetic number, because the mean of its divisors is an integer number (36013420).

Almost surely, 2^72026839 is an apocalyptic number.

72026839 is a deficient number, since it is larger than the sum of its proper divisors (1).

72026839 is an equidigital number, since it uses as much as digits as its factorization.

72026839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 72026839 is about 8486.8627301259. The cubic root of 72026839 is about 416.0684501977.

It can be divided in two parts, 7202 and 6839, that added together give a palindrome (14041).

The spelling of 72026839 in words is "seventy-two million, twenty-six thousand, eight hundred thirty-nine".