79291771 has 8 divisors (see below), whose sum is σ = 88336080. Its totient is φ = 70668192.

The previous prime is 79291759. The next prime is 79291783. The reversal of 79291771 is 17719297.

It is an interprime number because it is at equal distance from previous prime (79291759) and next prime (79291783).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79291771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79291711) 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 7 ways as a sum of consecutive naturals, for example, 104785 + ... + 105538.

It is an arithmetic number, because the mean of its divisors is an integer number (11042010).

Almost surely, 2^79291771 is an apocalyptic number.

79291771 is a deficient number, since it is larger than the sum of its proper divisors (9044309).

79291771 is a wasteful number, since it uses less digits than its factorization.

79291771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210365.

The product of its digits is 55566, while the sum is 43.

The square root of 79291771 is about 8904.5926914149. The cubic root of 79291771 is about 429.6116396176.

The spelling of 79291771 in words is "seventy-nine million, two hundred ninety-one thousand, seven hundred seventy-one".