213928003 has 2 divisors, whose sum is σ = 213928004. Its totient is φ = 213928002.

The previous prime is 213927977. The next prime is 213928009. The reversal of 213928003 is 300829312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213928003 is a prime.

It is not a weakly prime, because it can be changed into another prime (213928009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106964001 + 106964002.

It is an arithmetic number, because the mean of its divisors is an integer number (106964002).

Almost surely, 2^213928003 is an apocalyptic number.

213928003 is a deficient number, since it is larger than the sum of its proper divisors (1).

213928003 is an equidigital number, since it uses as much as digits as its factorization.

213928003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 213928003 is about 14626.2778245184. The cubic root of 213928003 is about 598.0753168522.

The spelling of 213928003 in words is "two hundred thirteen million, nine hundred twenty-eight thousand, three".