8073645 has 16 divisors (see below), whose sum is σ = 12953472. Its totient is φ = 4294080.

The previous prime is 8073641. The next prime is 8073647. The reversal of 8073645 is 5463708.

It is not a de Polignac number, because 8073645 - 2² = 8073641 is a prime.

It is a super-3 number, since 3×8073645³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8073641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9039 + ... + 9891.

It is an arithmetic number, because the mean of its divisors is an integer number (809592).

Almost surely, 2^8073645 is an apocalyptic number.

It is an amenable number.

8073645 is a deficient number, since it is larger than the sum of its proper divisors (4879827).

8073645 is a wasteful number, since it uses less digits than its factorization.

8073645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 8073645 is about 2841.4160202265. The cubic root of 8073645 is about 200.6118347161.

The spelling of 8073645 in words is "eight million, seventy-three thousand, six hundred forty-five".