428030893 has 2 divisors, whose sum is σ = 428030894. Its totient is φ = 428030892.

The previous prime is 428030887. The next prime is 428030909. The reversal of 428030893 is 398030824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318158569 + 109872324 = 17837^2 + 10482^2 .

It is a cyclic number.

It is not a de Polignac number, because 428030893 - 2⁹ = 428030381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428030843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214015446 + 214015447.

It is an arithmetic number, because the mean of its divisors is an integer number (214015447).

Almost surely, 2^428030893 is an apocalyptic number.

It is an amenable number.

428030893 is a deficient number, since it is larger than the sum of its proper divisors (1).

428030893 is an equidigital number, since it uses as much as digits as its factorization.

428030893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 428030893 is about 20688.9074868636. The cubic root of 428030893 is about 753.6303357892.

The spelling of 428030893 in words is "four hundred twenty-eight million, thirty thousand, eight hundred ninety-three".