8214263821 has 8 divisors (see below), whose sum is σ = 8233340544. Its totient is φ = 8195204640.

The previous prime is 8214263809. The next prime is 8214263839. The reversal of 8214263821 is 1283624128.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8214263821 - 2²³ = 8205875213 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 (8214263801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449225 + ... + 1454881.

It is an arithmetic number, because the mean of its divisors is an integer number (1029167568).

Almost surely, 2^8214263821 is an apocalyptic number.

It is an amenable number.

8214263821 is a deficient number, since it is larger than the sum of its proper divisors (19076723).

8214263821 is a wasteful number, since it uses less digits than its factorization.

8214263821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8771.

The product of its digits is 36864, while the sum is 37.

The square root of 8214263821 is about 90632.5759371320. The cubic root of 8214263821 is about 2017.6982425568.

Adding to 8214263821 its reverse (1283624128), we get a palindrome (9497887949).

The spelling of 8214263821 in words is "eight billion, two hundred fourteen million, two hundred sixty-three thousand, eight hundred twenty-one".