82469389 has 2 divisors, whose sum is σ = 82469390. Its totient is φ = 82469388.

The previous prime is 82469369. The next prime is 82469419. The reversal of 82469389 is 98396428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78234025 + 4235364 = 8845^2 + 2058^2 .

It is a cyclic number.

It is not a de Polignac number, because 82469389 - 2⁵ = 82469357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82469339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41234694 + 41234695.

It is an arithmetic number, because the mean of its divisors is an integer number (41234695).

Almost surely, 2^82469389 is an apocalyptic number.

It is an amenable number.

82469389 is a deficient number, since it is larger than the sum of its proper divisors (1).

82469389 is an equidigital number, since it uses as much as digits as its factorization.

82469389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 49.

The square root of 82469389 is about 9081.2658258637. The cubic root of 82469389 is about 435.2755360080.

The spelling of 82469389 in words is "eighty-two million, four hundred sixty-nine thousand, three hundred eighty-nine".