66024287 has 8 divisors (see below), whose sum is σ = 75518976. Its totient is φ = 56545272.

The previous prime is 66024251. The next prime is 66024319. The reversal of 66024287 is 78242066.

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

It is not a de Polignac number, because 66024287 - 2⁶ = 66024223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66024247) 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, 7238 + ... + 13580.

It is an arithmetic number, because the mean of its divisors is an integer number (9439872).

Almost surely, 2^66024287 is an apocalyptic number.

66024287 is a deficient number, since it is larger than the sum of its proper divisors (9494689).

66024287 is a wasteful number, since it uses less digits than its factorization.

66024287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 66024287 is about 8125.5330286696. The cubic root of 66024287 is about 404.1735664863.

The spelling of 66024287 in words is "sixty-six million, twenty-four thousand, two hundred eighty-seven".