8292943821 has 4 divisors (see below), whose sum is σ = 11057258432. Its totient is φ = 5528629212.

The previous prime is 8292943819. The next prime is 8292943823. The reversal of 8292943821 is 1283492928.

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 an interprime number because it is at equal distance from previous prime (8292943819) and next prime (8292943823).

It is not a de Polignac number, because 8292943821 - 2¹ = 8292943819 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 (8292943823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1382157301 + ... + 1382157306.

It is an arithmetic number, because the mean of its divisors is an integer number (2764314608).

Almost surely, 2^8292943821 is an apocalyptic number.

It is an amenable number.

8292943821 is a deficient number, since it is larger than the sum of its proper divisors (2764314611).

8292943821 is a wasteful number, since it uses less digits than its factorization.

8292943821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764314610.

The product of its digits is 497664, while the sum is 48.

The square root of 8292943821 is about 91065.6017440175. The cubic root of 8292943821 is about 2024.1199302103.

The spelling of 8292943821 in words is "eight billion, two hundred ninety-two million, nine hundred forty-three thousand, eight hundred twenty-one".