83566079 has 4 divisors (see below), whose sum is σ = 84204120. Its totient is φ = 82928040.

The previous prime is 83566057. The next prime is 83566103. The reversal of 83566079 is 97066538.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83566079 - 2¹² = 83561983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13566079) 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, 318824 + ... + 319085.

It is an arithmetic number, because the mean of its divisors is an integer number (21051030).

Almost surely, 2^83566079 is an apocalyptic number.

83566079 is a deficient number, since it is larger than the sum of its proper divisors (638041).

83566079 is a wasteful number, since it uses less digits than its factorization.

83566079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638040.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 83566079 is about 9141.4484082119. The cubic root of 83566079 is about 437.1964985111.

The spelling of 83566079 in words is "eighty-three million, five hundred sixty-six thousand, seventy-nine".