83204661 has 4 divisors (see below), whose sum is σ = 110939552. Its totient is φ = 55469772.

The previous prime is 83204609. The next prime is 83204669. The reversal of 83204661 is 16640238.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 83204661 - 2¹⁴ = 83188277 is a prime.

It is a super-2 number, since 2×83204661² = 13846031224249842, 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 (83204669) 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, 13867441 + ... + 13867446.

It is an arithmetic number, because the mean of its divisors is an integer number (27734888).

Almost surely, 2^83204661 is an apocalyptic number.

It is an amenable number.

83204661 is a deficient number, since it is larger than the sum of its proper divisors (27734891).

83204661 is a wasteful number, since it uses less digits than its factorization.

83204661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27734890.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 83204661 is about 9121.6588951791. The cubic root of 83204661 is about 436.5653052873.

Adding to 83204661 its reverse (16640238), we get a palindrome (99844899).

The spelling of 83204661 in words is "eighty-three million, two hundred four thousand, six hundred sixty-one".