428923241 has 2 divisors, whose sum is σ = 428923242. Its totient is φ = 428923240.

The previous prime is 428923211. The next prime is 428923249. The reversal of 428923241 is 142329824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214915600 + 214007641 = 14660^2 + 14629^2 .

It is a cyclic number.

It is not a de Polignac number, because 428923241 - 2¹⁰ = 428922217 is a prime.

It is not a weakly prime, because it can be changed into another prime (428923249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214461620 + 214461621.

It is an arithmetic number, because the mean of its divisors is an integer number (214461621).

Almost surely, 2^428923241 is an apocalyptic number.

It is an amenable number.

428923241 is a deficient number, since it is larger than the sum of its proper divisors (1).

428923241 is an equidigital number, since it uses as much as digits as its factorization.

428923241 is an evil number, because the sum of its binary digits is even.

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

The square root of 428923241 is about 20710.4621145932. The cubic root of 428923241 is about 754.1536887660.

The spelling of 428923241 in words is "four hundred twenty-eight million, nine hundred twenty-three thousand, two hundred forty-one".