8073643 has 4 divisors (see below), whose sum is σ = 8079688. Its totient is φ = 8067600.

The previous prime is 8073641. The next prime is 8073647. The reversal of 8073643 is 3463708.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8073643 - 2¹ = 8073641 is a prime.

It is a super-2 number, since 2×8073643² = 130367422582898, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8 + 0 + 7³ + 3¹³ + 6⁸ + 4⁷ + 3¹⁴ .

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 33 + ... + 4018.

It is an arithmetic number, because the mean of its divisors is an integer number (2019922).

Almost surely, 2^8073643 is an apocalyptic number.

8073643 is a deficient number, since it is larger than the sum of its proper divisors (6045).

8073643 is a wasteful number, since it uses less digits than its factorization.

8073643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 8073643 is about 2841.4156682893. The cubic root of 8073643 is about 200.6118181509.

The spelling of 8073643 in words is "eight million, seventy-three thousand, six hundred forty-three".