64294397 has 2 divisors, whose sum is σ = 64294398. Its totient is φ = 64294396.

The previous prime is 64294369. The next prime is 64294409. The reversal of 64294397 is 79349246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62188996 + 2105401 = 7886^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 64294397 - 2¹⁰ = 64293373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64294327) 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, 32147198 + 32147199.

It is an arithmetic number, because the mean of its divisors is an integer number (32147199).

Almost surely, 2^64294397 is an apocalyptic number.

It is an amenable number.

64294397 is a deficient number, since it is larger than the sum of its proper divisors (1).

64294397 is an equidigital number, since it uses as much as digits as its factorization.

64294397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 64294397 is about 8018.3787014583. The cubic root of 64294397 is about 400.6123890540.

The spelling of 64294397 in words is "sixty-four million, two hundred ninety-four thousand, three hundred ninety-seven".