76745 has 4 divisors (see below), whose sum is σ = 92100. Its totient is φ = 61392.

The previous prime is 76733. The next prime is 76753. The reversal of 76745 is 54767.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26569 + 50176 = 163^2 + 224^2 .

It is a cyclic number.

It is not a de Polignac number, because 76745 - 2¹⁰ = 75721 is a prime.

It is an alternating number because its digits alternate between odd and even.

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, 7670 + ... + 7679.

It is an arithmetic number, because the mean of its divisors is an integer number (23025).

2⁷⁶⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

76745 is a deficient number, since it is larger than the sum of its proper divisors (15355).

76745 is a wasteful number, since it uses less digits than its factorization.

76745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15354.

The product of its digits is 5880, while the sum is 29.

The square root of 76745 is about 277.0288793610. The cubic root of 76745 is about 42.4961934307.

The spelling of 76745 in words is "seventy-six thousand, seven hundred forty-five".