72094439 has 2 divisors, whose sum is σ = 72094440. Its totient is φ = 72094438.

The previous prime is 72094423. The next prime is 72094457. The reversal of 72094439 is 93449027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72094439 - 2⁴ = 72094423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72094459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36047219 + 36047220.

It is an arithmetic number, because the mean of its divisors is an integer number (36047220).

Almost surely, 2^72094439 is an apocalyptic number.

72094439 is a deficient number, since it is larger than the sum of its proper divisors (1).

72094439 is an equidigital number, since it uses as much as digits as its factorization.

72094439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 72094439 is about 8490.8444220819. The cubic root of 72094439 is about 416.1985749911.

It can be divided in two parts, 720 and 94439, that added together give a palindrome (95159).

The spelling of 72094439 in words is "seventy-two million, ninety-four thousand, four hundred thirty-nine".