457228789 has 2 divisors, whose sum is σ = 457228790. Its totient is φ = 457228788.

The previous prime is 457228781. The next prime is 457228801. The reversal of 457228789 is 987822754.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347188689 + 110040100 = 18633^2 + 10490^2 .

It is a cyclic number.

It is not a de Polignac number, because 457228789 - 2³ = 457228781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457228781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228614394 + 228614395.

It is an arithmetic number, because the mean of its divisors is an integer number (228614395).

Almost surely, 2^457228789 is an apocalyptic number.

It is an amenable number.

457228789 is a deficient number, since it is larger than the sum of its proper divisors (1).

457228789 is an equidigital number, since it uses as much as digits as its factorization.

457228789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 52.

The square root of 457228789 is about 21382.9088058664. The cubic root of 457228789 is about 770.3909798288.

The spelling of 457228789 in words is "four hundred fifty-seven million, two hundred twenty-eight thousand, seven hundred eighty-nine".