79945345 has 8 divisors (see below), whose sum is σ = 98527464. Its totient is φ = 62227584.

The previous prime is 79945337. The next prime is 79945379. The reversal of 79945345 is 54354997.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5157441 + 74787904 = 2271^2 + 8648^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 79945345 - 2³ = 79945337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79945295 and 79945304.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 215884 + ... + 216253.

It is an arithmetic number, because the mean of its divisors is an integer number (12315933).

Almost surely, 2^79945345 is an apocalyptic number.

It is an amenable number.

79945345 is a deficient number, since it is larger than the sum of its proper divisors (18582119).

79945345 is a wasteful number, since it uses less digits than its factorization.

79945345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432179.

The product of its digits is 680400, while the sum is 46.

The square root of 79945345 is about 8941.2160806011. The cubic root of 79945345 is about 430.7887901285.

The spelling of 79945345 in words is "seventy-nine million, nine hundred forty-five thousand, three hundred forty-five".