64549367 has 2 divisors, whose sum is σ = 64549368. Its totient is φ = 64549366.

The previous prime is 64549351. The next prime is 64549393. The reversal of 64549367 is 76394546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64549367 - 2⁴ = 64549351 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 (64549307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32274683 + 32274684.

It is an arithmetic number, because the mean of its divisors is an integer number (32274684).

Almost surely, 2^64549367 is an apocalyptic number.

64549367 is a deficient number, since it is larger than the sum of its proper divisors (1).

64549367 is an equidigital number, since it uses as much as digits as its factorization.

64549367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 44.

The square root of 64549367 is about 8034.2620694125. The cubic root of 64549367 is about 401.1412553273.

The spelling of 64549367 in words is "sixty-four million, five hundred forty-nine thousand, three hundred sixty-seven".