8264021 has 4 divisors (see below), whose sum is σ = 8281344. Its totient is φ = 8246700.

The previous prime is 8263979. The next prime is 8264027. The reversal of 8264021 is 1204628.

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 8264021 - 2¹⁰ = 8262997 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 (8264027) 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, 7925 + ... + 8906.

It is an arithmetic number, because the mean of its divisors is an integer number (2070336).

Almost surely, 2^8264021 is an apocalyptic number.

It is an amenable number.

8264021 is a deficient number, since it is larger than the sum of its proper divisors (17323).

8264021 is a wasteful number, since it uses less digits than its factorization.

8264021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17322.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 8264021 is about 2874.7210299436. The cubic root of 8264021 is about 202.1764053890.

Adding to 8264021 its reverse (1204628), we get a palindrome (9468649).

The spelling of 8264021 in words is "eight million, two hundred sixty-four thousand, twenty-one".