428885701 has 2 divisors, whose sum is σ = 428885702. Its totient is φ = 428885700.

The previous prime is 428885671. The next prime is 428885719. The reversal of 428885701 is 107588824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411035076 + 17850625 = 20274^2 + 4225^2 .

It is a cyclic number.

It is not a de Polignac number, because 428885701 - 2⁹ = 428885189 is a prime.

It is a super-2 number, since 2×428885701² = 367885889044522802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428886701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214442850 + 214442851.

It is an arithmetic number, because the mean of its divisors is an integer number (214442851).

Almost surely, 2^428885701 is an apocalyptic number.

It is an amenable number.

428885701 is a deficient number, since it is larger than the sum of its proper divisors (1).

428885701 is an equidigital number, since it uses as much as digits as its factorization.

428885701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 428885701 is about 20709.5557895383. Note that the first 3 decimals coincide. The cubic root of 428885701 is about 754.1316865732.

The spelling of 428885701 in words is "four hundred twenty-eight million, eight hundred eighty-five thousand, seven hundred one".