64316969 has 2 divisors, whose sum is σ = 64316970. Its totient is φ = 64316968.

The previous prime is 64316927. The next prime is 64317013. The reversal of 64316969 is 96961346.

It is an a-pointer prime, because the next prime (64317013) can be obtained adding 64316969 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 316969 = 8000^2 + 563^2 .

It is a cyclic number.

It is not a de Polignac number, because 64316969 - 2⁸ = 64316713 is a prime.

It is a super-2 number, since 2×64316969² = 8273345002693922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64316269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32158484 + 32158485.

It is an arithmetic number, because the mean of its divisors is an integer number (32158485).

Almost surely, 2^64316969 is an apocalyptic number.

It is an amenable number.

64316969 is a deficient number, since it is larger than the sum of its proper divisors (1).

64316969 is an equidigital number, since it uses as much as digits as its factorization.

64316969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The square root of 64316969 is about 8019.7860944043. The cubic root of 64316969 is about 400.6592649108.

It can be divided in two parts, 64 and 316969, that multiplied together give a square (20286016 = 4504²).

The spelling of 64316969 in words is "sixty-four million, three hundred sixteen thousand, nine hundred sixty-nine".