83532609 has 12 divisors (see below), whose sum is σ = 120744676. Its totient is φ = 55648512.

The previous prime is 83532601. The next prime is 83532629. The reversal of 83532609 is 90623538.

It can be written as a sum of positive squares in 2 ways, for example, as 33872400 + 49660209 = 5820^2 + 7047^2 .

It is not a de Polignac number, because 83532609 - 2³ = 83532601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83532601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15609 + ... + 20265.

Almost surely, 2^83532609 is an apocalyptic number.

It is an amenable number.

83532609 is a deficient number, since it is larger than the sum of its proper divisors (37212067).

83532609 is a wasteful number, since it uses less digits than its factorization.

83532609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6656 (or 6653 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 83532609 is about 9139.6175521736. The cubic root of 83532609 is about 437.1381218707.

The spelling of 83532609 in words is "eighty-three million, five hundred thirty-two thousand, six hundred nine".