64067887 has 4 divisors (see below), whose sum is σ = 68996200. Its totient is φ = 59139576.

The previous prime is 64067863. The next prime is 64067947. The reversal of 64067887 is 78876046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64067887 - 2¹¹ = 64065839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64067827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2464137 + ... + 2464162.

It is an arithmetic number, because the mean of its divisors is an integer number (17249050).

Almost surely, 2^64067887 is an apocalyptic number.

64067887 is a deficient number, since it is larger than the sum of its proper divisors (4928313).

64067887 is a wasteful number, since it uses less digits than its factorization.

64067887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928312.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 64067887 is about 8004.2418129389. The cubic root of 64067887 is about 400.1413812725.

The spelling of 64067887 in words is "sixty-four million, sixty-seven thousand, eight hundred eighty-seven".