8021693 has 4 divisors (see below), whose sum is σ = 8208288. Its totient is φ = 7835100.

The previous prime is 8021681. The next prime is 8021729. The reversal of 8021693 is 3961208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8021693 - 2⁴ = 8021677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8021593) 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, 93233 + ... + 93318.

It is an arithmetic number, because the mean of its divisors is an integer number (2052072).

Almost surely, 2^8021693 is an apocalyptic number.

It is an amenable number.

8021693 is a deficient number, since it is larger than the sum of its proper divisors (186595).

8021693 is a wasteful number, since it uses less digits than its factorization.

8021693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186594.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 8021693 is about 2832.2593454696. The cubic root of 8021693 is about 200.1806118477.

The spelling of 8021693 in words is "eight million, twenty-one thousand, six hundred ninety-three".