64043267 has 6 divisors (see below), whose sum is σ = 68032428. Its totient is φ = 60275744.

The previous prime is 64043257. The next prime is 64043269. The reversal of 64043267 is 76234046.

It is not a de Polignac number, because 64043267 - 2⁸ = 64043011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64043269) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110513 + ... + 111090.

It is an arithmetic number, because the mean of its divisors is an integer number (11338738).

Almost surely, 2^64043267 is an apocalyptic number.

64043267 is a deficient number, since it is larger than the sum of its proper divisors (3989161).

64043267 is a wasteful number, since it uses less digits than its factorization.

64043267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221637 (or 221620 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 64043267 is about 8002.7037306150. The cubic root of 64043267 is about 400.0901192781.

The spelling of 64043267 in words is "sixty-four million, forty-three thousand, two hundred sixty-seven".