83601009 has 24 divisors (see below), whose sum is σ = 125483904. Its totient is φ = 53592000.

The previous prime is 83600989. The next prime is 83601013. The reversal of 83601009 is 90010638.

It is not a de Polignac number, because 83601009 - 2⁵ = 83600977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83601029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24604 + ... + 27794.

It is an arithmetic number, because the mean of its divisors is an integer number (5228496).

Almost surely, 2^83601009 is an apocalyptic number.

It is an amenable number.

83601009 is a deficient number, since it is larger than the sum of its proper divisors (41882895).

83601009 is a wasteful number, since it uses less digits than its factorization.

83601009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309 (or 3306 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 83601009 is about 9143.3587373569. The cubic root of 83601009 is about 437.2574049882.

The spelling of 83601009 in words is "eighty-three million, six hundred one thousand, nine".