79194481 has 4 divisors (see below), whose sum is σ = 79291764. Its totient is φ = 79097200.

The previous prime is 79194473. The next prime is 79194487. The reversal of 79194481 is 18449197.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56010256 + 23184225 = 7484^2 + 4815^2 .

It is a cyclic number.

It is not a de Polignac number, because 79194481 - 2³ = 79194473 is a prime.

It is a super-2 number, since 2×79194481² = 12543531641718722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79194487) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 47410 + ... + 49051.

It is an arithmetic number, because the mean of its divisors is an integer number (19822941).

Almost surely, 2^79194481 is an apocalyptic number.

It is an amenable number.

79194481 is a deficient number, since it is larger than the sum of its proper divisors (97283).

79194481 is an equidigital number, since it uses as much as digits as its factorization.

79194481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97282.

The product of its digits is 72576, while the sum is 43.

The square root of 79194481 is about 8899.1281033593. The cubic root of 79194481 is about 429.4358583551.

The spelling of 79194481 in words is "seventy-nine million, one hundred ninety-four thousand, four hundred eighty-one".