83280469 has 4 divisors (see below), whose sum is σ = 84044620. Its totient is φ = 82516320.

The previous prime is 83280443. The next prime is 83280473. The reversal of 83280469 is 96408238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53436100 + 29844369 = 7310^2 + 5463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83280469 is a prime.

It is a super-2 number, since 2×83280469² = 13871273033719922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83280479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381912 + ... + 382129.

It is an arithmetic number, because the mean of its divisors is an integer number (21011155).

Almost surely, 2^83280469 is an apocalyptic number.

It is an amenable number.

83280469 is a deficient number, since it is larger than the sum of its proper divisors (764151).

83280469 is a wasteful number, since it uses less digits than its factorization.

83280469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764150.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 83280469 is about 9125.8133336158. The cubic root of 83280469 is about 436.6978503328.

The spelling of 83280469 in words is "eighty-three million, two hundred eighty thousand, four hundred sixty-nine".