72883439 has 2 divisors, whose sum is σ = 72883440. Its totient is φ = 72883438.

The previous prime is 72883397. The next prime is 72883453. The reversal of 72883439 is 93438827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72883439 - 2¹² = 72879343 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72883439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72883469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36441719 + 36441720.

It is an arithmetic number, because the mean of its divisors is an integer number (36441720).

Almost surely, 2^72883439 is an apocalyptic number.

72883439 is a deficient number, since it is larger than the sum of its proper divisors (1).

72883439 is an equidigital number, since it uses as much as digits as its factorization.

72883439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 72883439 is about 8537.1798036588. The cubic root of 72883439 is about 417.7113591509.

The spelling of 72883439 in words is "seventy-two million, eight hundred eighty-three thousand, four hundred thirty-nine".