79075666 has 4 divisors (see below), whose sum is σ = 118613502. Its totient is φ = 39537832.

The previous prime is 79075657. The next prime is 79075681. The reversal of 79075666 is 66657097.

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

It can be written as a sum of positive squares in only one way, i.e., 77810041 + 1265625 = 8821^2 + 1125^2 .

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 as a sum of consecutive naturals, namely, 19768915 + ... + 19768918.

Almost surely, 2^79075666 is an apocalyptic number.

79075666 is a deficient number, since it is larger than the sum of its proper divisors (39537836).

79075666 is a wasteful number, since it uses less digits than its factorization.

79075666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39537835.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 79075666 is about 8892.4499436320. The cubic root of 79075666 is about 429.2209908590.

The spelling of 79075666 in words is "seventy-nine million, seventy-five thousand, six hundred sixty-six".