79666633 has 4 divisors (see below), whose sum is σ = 79719808. Its totient is φ = 79613460.

The previous prime is 79666597. The next prime is 79666669. The reversal of 79666633 is 33666697.

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 an interprime number because it is at equal distance from previous prime (79666597) and next prime (79666669).

It is a cyclic number.

It is not a de Polignac number, because 79666633 - 2²⁵ = 46112201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79666333) 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 3 ways as a sum of consecutive naturals, for example, 24273 + ... + 27358.

It is an arithmetic number, because the mean of its divisors is an integer number (19929952).

Almost surely, 2^79666633 is an apocalyptic number.

It is an amenable number.

79666633 is a deficient number, since it is larger than the sum of its proper divisors (53175).

79666633 is a wasteful number, since it uses less digits than its factorization.

79666633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53174.

The product of its digits is 734832, while the sum is 46.

The square root of 79666633 is about 8925.6166733733. The cubic root of 79666633 is about 430.2875901978.

The spelling of 79666633 in words is "seventy-nine million, six hundred sixty-six thousand, six hundred thirty-three".