64020233 has 2 divisors, whose sum is σ = 64020234. Its totient is φ = 64020232.

The previous prime is 64020221. The next prime is 64020241. The reversal of 64020233 is 33202046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49519369 + 14500864 = 7037^2 + 3808^2 .

It is a cyclic number.

It is not a de Polignac number, because 64020233 - 2⁴ = 64020217 is a prime.

It is a super-4 number, since 4×64020233⁴ (a number of 32 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (64020833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32010116 + 32010117.

It is an arithmetic number, because the mean of its divisors is an integer number (32010117).

Almost surely, 2^64020233 is an apocalyptic number.

It is an amenable number.

64020233 is a deficient number, since it is larger than the sum of its proper divisors (1).

64020233 is an equidigital number, since it uses as much as digits as its factorization.

64020233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 64020233 is about 8001.2644625709. The cubic root of 64020233 is about 400.0421476421.

Adding to 64020233 its reverse (33202046), we get a palindrome (97222279).

The spelling of 64020233 in words is "sixty-four million, twenty thousand, two hundred thirty-three".