420773233 has 2 divisors, whose sum is σ = 420773234. Its totient is φ = 420773232.

The previous prime is 420773203. The next prime is 420773237. The reversal of 420773233 is 332377024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374151649 + 46621584 = 19343^2 + 6828^2 .

It is a cyclic number.

It is not a de Polignac number, because 420773233 - 2²¹ = 418676081 is a prime.

It is a super-2 number, since 2×420773233² = 354100227218544578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420773195 and 420773204.

It is not a weakly prime, because it can be changed into another prime (420773237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210386616 + 210386617.

It is an arithmetic number, because the mean of its divisors is an integer number (210386617).

Almost surely, 2^420773233 is an apocalyptic number.

It is an amenable number.

420773233 is a deficient number, since it is larger than the sum of its proper divisors (1).

420773233 is an equidigital number, since it uses as much as digits as its factorization.

420773233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 31.

The square root of 420773233 is about 20512.7578106894. The cubic root of 420773233 is about 749.3465318416.

The spelling of 420773233 in words is "four hundred twenty million, seven hundred seventy-three thousand, two hundred thirty-three".