64351433 has 2 divisors, whose sum is σ = 64351434. Its totient is φ = 64351432.

The previous prime is 64351393. The next prime is 64351439. The reversal of 64351433 is 33415346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63952009 + 399424 = 7997^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 64351433 - 2⁶ = 64351369 is a prime.

It is a super-2 number, since 2×64351433² = 8282213858306978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64351396 and 64351405.

It is not a weakly prime, because it can be changed into another prime (64351439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32175716 + 32175717.

It is an arithmetic number, because the mean of its divisors is an integer number (32175717).

Almost surely, 2^64351433 is an apocalyptic number.

It is an amenable number.

64351433 is a deficient number, since it is larger than the sum of its proper divisors (1).

64351433 is an equidigital number, since it uses as much as digits as its factorization.

64351433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 29.

The square root of 64351433 is about 8021.9344923778. The cubic root of 64351433 is about 400.7308160399.

Adding to 64351433 its reverse (33415346), we get a palindrome (97766779).

The spelling of 64351433 in words is "sixty-four million, three hundred fifty-one thousand, four hundred thirty-three".