64047067 has 6 divisors (see below), whose sum is σ = 74503788. Its totient is φ = 54897444.

The previous prime is 64047047. The next prime is 64047073. The reversal of 64047067 is 76074046.

It is a de Polignac number, because none of the positive numbers 2^k-64047067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64047047) 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, 653493 + ... + 653590.

It is an arithmetic number, because the mean of its divisors is an integer number (12417298).

Almost surely, 2^64047067 is an apocalyptic number.

64047067 is a deficient number, since it is larger than the sum of its proper divisors (10456721).

64047067 is a wasteful number, since it uses less digits than its factorization.

64047067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307097 (or 1307090 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 64047067 is about 8002.9411468534. The cubic root of 64047067 is about 400.0980322222.

The spelling of 64047067 in words is "sixty-four million, forty-seven thousand, sixty-seven".