64448867 has 6 divisors (see below), whose sum is σ = 74971188. Its totient is φ = 55241844.

The previous prime is 64448863. The next prime is 64448897. The reversal of 64448867 is 76884446.

It is not a de Polignac number, because 64448867 - 2² = 64448863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64448861) 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, 657593 + ... + 657690.

It is an arithmetic number, because the mean of its divisors is an integer number (12495198).

Almost surely, 2^64448867 is an apocalyptic number.

64448867 is a deficient number, since it is larger than the sum of its proper divisors (10522321).

64448867 is a wasteful number, since it uses less digits than its factorization.

64448867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315297 (or 1315290 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The square root of 64448867 is about 8028.0051694054. The cubic root of 64448867 is about 400.9329618470.

The spelling of 64448867 in words is "sixty-four million, four hundred forty-eight thousand, eight hundred sixty-seven".