287000066 has 16 divisors (see below), whose sum is σ = 445746240. Its totient is φ = 138426960.

The previous prime is 287000057. The next prime is 287000089. The reversal of 287000066 is 660000782.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119861 + ... + 122231.

It is an arithmetic number, because the mean of its divisors is an integer number (27859140).

Almost surely, 2^287000066 is an apocalyptic number.

287000066 is a deficient number, since it is larger than the sum of its proper divisors (158746174).

287000066 is a wasteful number, since it uses less digits than its factorization.

287000066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 287000066 is about 16941.0762940257. The cubic root of 287000066 is about 659.6202789734.

The spelling of 287000066 in words is "two hundred eighty-seven million, sixty-six", and thus it is an aban number.