8421862403 has 2 divisors, whose sum is σ = 8421862404. Its totient is φ = 8421862402.

The previous prime is 8421862381. The next prime is 8421862417. The reversal of 8421862403 is 3042681248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8421862403 - 2⁸ = 8421862147 is a prime.

It is not a weakly prime, because it can be changed into another prime (8421862453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4210931201 + 4210931202.

It is an arithmetic number, because the mean of its divisors is an integer number (4210931202).

Almost surely, 2^8421862403 is an apocalyptic number.

8421862403 is a deficient number, since it is larger than the sum of its proper divisors (1).

8421862403 is an equidigital number, since it uses as much as digits as its factorization.

8421862403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 8421862403 is about 91770.7055819012. The cubic root of 8421862403 is about 2034.5547467049.

The spelling of 8421862403 in words is "eight billion, four hundred twenty-one million, eight hundred sixty-two thousand, four hundred three".