79551349 has 4 divisors (see below), whose sum is σ = 80371564. Its totient is φ = 78731136.

The previous prime is 79551331. The next prime is 79551371. The reversal of 79551349 is 94315597.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94315597 = 887 ⋅106331.

It can be written as a sum of positive squares in 2 ways, for example, as 23571025 + 55980324 = 4855^2 + 7482^2 .

It is a cyclic number.

It is not a de Polignac number, because 79551349 - 2¹⁵ = 79518581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79551649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409962 + ... + 410155.

It is an arithmetic number, because the mean of its divisors is an integer number (20092891).

Almost surely, 2^79551349 is an apocalyptic number.

It is an amenable number.

79551349 is a deficient number, since it is larger than the sum of its proper divisors (820215).

79551349 is an equidigital number, since it uses as much as digits as its factorization.

79551349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820214.

The product of its digits is 170100, while the sum is 43.

The square root of 79551349 is about 8919.1562941794. The cubic root of 79551349 is about 430.0799364640.

The spelling of 79551349 in words is "seventy-nine million, five hundred fifty-one thousand, three hundred forty-nine".