79745 has 8 divisors (see below), whose sum is σ = 98280. Its totient is φ = 62080.

The previous prime is 79699. The next prime is 79757. The reversal of 79745 is 54797.

It can be written as a sum of positive squares in 4 ways, for example, as 784 + 78961 = 28^2 + 281^2 .

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

It is not a de Polignac number, because 79745 - 2¹⁰ = 78721 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11 + ... + 399.

It is an arithmetic number, because the mean of its divisors is an integer number (12285).

2⁷⁹⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

79745 is a deficient number, since it is larger than the sum of its proper divisors (18535).

79745 is a wasteful number, since it uses less digits than its factorization.

79745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435.

The product of its digits is 8820, while the sum is 32.

The square root of 79745 is about 282.3915721122. The cubic root of 79745 is about 43.0428633341.

The spelling of 79745 in words is "seventy-nine thousand, seven hundred forty-five".