8013745 has 4 divisors (see below), whose sum is σ = 9616500. Its totient is φ = 6410992.

The previous prime is 8013743. The next prime is 8013757. The reversal of 8013745 is 5473108.

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 3888784 + 4124961 = 1972^2 + 2031^2 .

It is a cyclic number.

It is not a de Polignac number, because 8013745 - 2¹ = 8013743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8013743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 801370 + ... + 801379.

It is an arithmetic number, because the mean of its divisors is an integer number (2404125).

Almost surely, 2^8013745 is an apocalyptic number.

It is an amenable number.

8013745 is a deficient number, since it is larger than the sum of its proper divisors (1602755).

8013745 is a wasteful number, since it uses less digits than its factorization.

8013745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602754.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 8013745 is about 2830.8558776455. The cubic root of 8013745 is about 200.1144761302.

The spelling of 8013745 in words is "eight million, thirteen thousand, seven hundred forty-five".