64688347 has 2 divisors, whose sum is σ = 64688348. Its totient is φ = 64688346.

The previous prime is 64688341. The next prime is 64688353. The reversal of 64688347 is 74388646.

It is a balanced prime because it is at equal distance from previous prime (64688341) and next prime (64688353).

It is a cyclic number.

It is not a de Polignac number, because 64688347 - 2⁷ = 64688219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64688297 and 64688306.

It is not a weakly prime, because it can be changed into another prime (64688341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32344173 + 32344174.

It is an arithmetic number, because the mean of its divisors is an integer number (32344174).

Almost surely, 2^64688347 is an apocalyptic number.

64688347 is a deficient number, since it is larger than the sum of its proper divisors (1).

64688347 is an equidigital number, since it uses as much as digits as its factorization.

64688347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 46.

The square root of 64688347 is about 8042.9066263385. The cubic root of 64688347 is about 401.4289454586.

The spelling of 64688347 in words is "sixty-four million, six hundred eighty-eight thousand, three hundred forty-seven".