8012645 has 4 divisors (see below), whose sum is σ = 9615180. Its totient is φ = 6410112.

The previous prime is 8012639. The next prime is 8012647. The reversal of 8012645 is 5462108.

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 6160324 + 1852321 = 2482^2 + 1361^2 .

It is a cyclic number.

It is not a de Polignac number, because 8012645 - 2¹⁰ = 8011621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801260 + ... + 801269.

It is an arithmetic number, because the mean of its divisors is an integer number (2403795).

Almost surely, 2^8012645 is an apocalyptic number.

It is an amenable number.

8012645 is a deficient number, since it is larger than the sum of its proper divisors (1602535).

8012645 is a wasteful number, since it uses less digits than its factorization.

8012645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602534.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 8012645 is about 2830.6615834465. The cubic root of 8012645 is about 200.1053195292.

The spelling of 8012645 in words is "eight million, twelve thousand, six hundred forty-five".