79305745 has 8 divisors (see below), whose sum is σ = 96148584. Its totient is φ = 62790144.

The previous prime is 79305739. The next prime is 79305757. The reversal of 79305745 is 54750397.

It can be written as a sum of positive squares in 4 ways, for example, as 15752961 + 63552784 = 3969^2 + 7972^2 .

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 79305745 - 2¹³ = 79297553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79305698 and 79305707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81274 + ... + 82243.

It is an arithmetic number, because the mean of its divisors is an integer number (12018573).

Almost surely, 2^79305745 is an apocalyptic number.

It is an amenable number.

79305745 is a deficient number, since it is larger than the sum of its proper divisors (16842839).

79305745 is a wasteful number, since it uses less digits than its factorization.

79305745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163619.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 79305745 is about 8905.3773081212. The cubic root of 79305745 is about 429.6368756976.

The spelling of 79305745 in words is "seventy-nine million, three hundred five thousand, seven hundred forty-five".