64200287 has 8 divisors (see below), whose sum is σ = 68557440. Its totient is φ = 59986080.

The previous prime is 64200277. The next prime is 64200289. The reversal of 64200287 is 78200246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64200287 - 2⁶ = 64200223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64200289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34808 + ... + 36605.

It is an arithmetic number, because the mean of its divisors is an integer number (8569680).

Almost surely, 2^64200287 is an apocalyptic number.

64200287 is a deficient number, since it is larger than the sum of its proper divisors (4357153).

64200287 is a wasteful number, since it uses less digits than its factorization.

64200287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71473.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 64200287 is about 8012.5081591222. The cubic root of 64200287 is about 400.4168300642.

The spelling of 64200287 in words is "sixty-four million, two hundred thousand, two hundred eighty-seven".