8668403 has 2 divisors, whose sum is σ = 8668404. Its totient is φ = 8668402.

The previous prime is 8668381. The next prime is 8668421. The reversal of 8668403 is 3048668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8668403 - 2²⁰ = 7619827 is a prime.

It is not a weakly prime, because it can be changed into another prime (8668423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334201 + 4334202.

It is an arithmetic number, because the mean of its divisors is an integer number (4334202).

Almost surely, 2^8668403 is an apocalyptic number.

8668403 is a deficient number, since it is larger than the sum of its proper divisors (1).

8668403 is an equidigital number, since it uses as much as digits as its factorization.

8668403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 8668403 is about 2944.2151755604. The cubic root of 8668403 is about 205.4217215769.

The spelling of 8668403 in words is "eight million, six hundred sixty-eight thousand, four hundred three".