79499545 has 4 divisors (see below), whose sum is σ = 95399460. Its totient is φ = 63599632.

The previous prime is 79499507. The next prime is 79499579. The reversal of 79499545 is 54599497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54599497 = 71 ⋅769007.

It can be written as a sum of positive squares in 2 ways, for example, as 28047616 + 51451929 = 5296^2 + 7173^2 .

It is a cyclic number.

It is not a de Polignac number, because 79499545 - 2⁹ = 79499033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79499492 and 79499501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7949950 + ... + 7949959.

It is an arithmetic number, because the mean of its divisors is an integer number (23849865).

Almost surely, 2^79499545 is an apocalyptic number.

It is an amenable number.

79499545 is a deficient number, since it is larger than the sum of its proper divisors (15899915).

79499545 is a wasteful number, since it uses less digits than its factorization.

79499545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15899914.

The product of its digits is 2041200, while the sum is 52.

The square root of 79499545 is about 8916.2517348940. The cubic root of 79499545 is about 429.9865598828.

The spelling of 79499545 in words is "seventy-nine million, four hundred ninety-nine thousand, five hundred forty-five".