64734331 has 2 divisors, whose sum is σ = 64734332. Its totient is φ = 64734330.

The previous prime is 64734301. The next prime is 64734353. The reversal of 64734331 is 13343746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64734331 - 2²⁵ = 31179899 is a prime.

It is a super-2 number, since 2×64734331² = 8381067220035122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64734293 and 64734302.

It is not a weakly prime, because it can be changed into another prime (64734301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32367165 + 32367166.

It is an arithmetic number, because the mean of its divisors is an integer number (32367166).

Almost surely, 2^64734331 is an apocalyptic number.

64734331 is a deficient number, since it is larger than the sum of its proper divisors (1).

64734331 is an equidigital number, since it uses as much as digits as its factorization.

64734331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 31.

The square root of 64734331 is about 8045.7647865197. The cubic root of 64734331 is about 401.5240421143.

The spelling of 64734331 in words is "sixty-four million, seven hundred thirty-four thousand, three hundred thirty-one".