64799069 has 2 divisors, whose sum is σ = 64799070. Its totient is φ = 64799068.

The previous prime is 64799047. The next prime is 64799113. The reversal of 64799069 is 96099746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35259844 + 29539225 = 5938^2 + 5435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64799069 is a prime.

It is a super-2 number, since 2×64799069² = 8397838686533522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64799029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32399534 + 32399535.

It is an arithmetic number, because the mean of its divisors is an integer number (32399535).

Almost surely, 2^64799069 is an apocalyptic number.

It is an amenable number.

64799069 is a deficient number, since it is larger than the sum of its proper divisors (1).

64799069 is an equidigital number, since it uses as much as digits as its factorization.

64799069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 64799069 is about 8049.7868915891. The cubic root of 64799069 is about 401.6578464534.

The spelling of 64799069 in words is "sixty-four million, seven hundred ninety-nine thousand, sixty-nine".