83609449 has 16 divisors (see below), whose sum is σ = 107606016. Its totient is φ = 63046800.

The previous prime is 83609437. The next prime is 83609459. The reversal of 83609449 is 94490638.

It is a cyclic number.

It is not a de Polignac number, because 83609449 - 2¹⁵ = 83576681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83609419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15127 + ... + 19900.

It is an arithmetic number, because the mean of its divisors is an integer number (6725376).

Almost surely, 2^83609449 is an apocalyptic number.

It is an amenable number.

83609449 is a deficient number, since it is larger than the sum of its proper divisors (23996567).

83609449 is a wasteful number, since it uses less digits than its factorization.

83609449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35076.

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

The square root of 83609449 is about 9143.8202628879. The cubic root of 83609449 is about 437.2721190384.

The spelling of 83609449 in words is "eighty-three million, six hundred nine thousand, four hundred forty-nine".