83306869 has 8 divisors (see below), whose sum is σ = 86109368. Its totient is φ = 80533440.

The previous prime is 83306863. The next prime is 83306893. The reversal of 83306869 is 96860338.

It can be written as a sum of positive squares in 4 ways, for example, as 2845969 + 80460900 = 1687^2 + 8970^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83306869 - 2²¹ = 81209717 is a prime.

It is a super-2 number, since 2×83306869² = 13880068845166322, 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 (83306863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1362 + ... + 12979.

It is an arithmetic number, because the mean of its divisors is an integer number (10763671).

Almost surely, 2^83306869 is an apocalyptic number.

It is an amenable number.

83306869 is a deficient number, since it is larger than the sum of its proper divisors (2802499).

83306869 is a wasteful number, since it uses less digits than its factorization.

83306869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14535.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 83306869 is about 9127.2596654198. The cubic root of 83306869 is about 436.7439900235.

The spelling of 83306869 in words is "eighty-three million, three hundred six thousand, eight hundred sixty-nine".