8392354921 has 16 divisors (see below), whose sum is σ = 8913162240. Its totient is φ = 7888793920.

The previous prime is 8392354909. The next prime is 8392354933. The reversal of 8392354921 is 1294532938.

It is an interprime number because it is at equal distance from previous prime (8392354909) and next prime (8392354933).

It is a cyclic number.

It is not a de Polignac number, because 8392354921 - 2⁹ = 8392354409 is a prime.

It is a super-2 number, since 2×8392354921² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8392354981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244215 + ... + 276451.

It is an arithmetic number, because the mean of its divisors is an integer number (557072640).

Almost surely, 2^8392354921 is an apocalyptic number.

It is an amenable number.

8392354921 is a deficient number, since it is larger than the sum of its proper divisors (520807319).

8392354921 is a wasteful number, since it uses less digits than its factorization.

8392354921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32504.

The product of its digits is 466560, while the sum is 46.

The square root of 8392354921 is about 91609.7970797884. The cubic root of 8392354921 is about 2032.1758256139.

The spelling of 8392354921 in words is "eight billion, three hundred ninety-two million, three hundred fifty-four thousand, nine hundred twenty-one".