79085449 has 3 divisors (see below), whose sum is σ = 79094343. Its totient is φ = 79076556.

The previous prime is 79085437. The next prime is 79085459. The reversal of 79085449 is 94458097.

The square root of 79085449 is 8893.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94458097 = 7013 ⋅13469.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 68359824 = 3275^2 + 8268^2 .

It is a de Polignac number, because none of the positive numbers 2^k-79085449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79085399 and 79085408.

It is not an unprimeable number, because it can be changed into a prime (79085459) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4447 + ... + 13339.

It is an arithmetic number, because the mean of its divisors is an integer number (26364781).

Almost surely, 2^79085449 is an apocalyptic number.

79085449 is the 8893-rd square number.

79085449 is the 4447-th centered octagonal number.

It is an amenable number.

79085449 is a deficient number, since it is larger than the sum of its proper divisors (8894).

79085449 is an frugal number, since it uses more digits than its factorization.

79085449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17786 (or 8893 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The cubic root of 79085449 is about 429.2386907660.

The spelling of 79085449 in words is "seventy-nine million, eighty-five thousand, four hundred forty-nine".