83561796 has 36 divisors (see below), whose sum is σ = 212758000. Its totient is φ = 27651888.

The previous prime is 83561773. The next prime is 83561801. The reversal of 83561796 is 69716538.

It is a happy number.

83561796 is a `hidden beast` number, since 83 + 561 + 7 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3346 + ... + 13353.

Almost surely, 2^83561796 is an apocalyptic number.

It is an amenable number.

83561796 is an abundant number, since it is smaller than the sum of its proper divisors (129196204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83561796 is a wasteful number, since it uses less digits than its factorization.

83561796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16848 (or 16843 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 83561796 is about 9141.2141425524. The cubic root of 83561796 is about 437.1890291942.

The spelling of 83561796 in words is "eighty-three million, five hundred sixty-one thousand, seven hundred ninety-six".