287348066 has 8 divisors (see below), whose sum is σ = 445885020. Its totient is φ = 138719728.

The previous prime is 287348057. The next prime is 287348069. The reversal of 287348066 is 660843782.

It can be written as a sum of positive squares in 2 ways, for example, as 279591841 + 7756225 = 16721^2 + 2785^2 .

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

It is a super-2 number, since 2×287348066² = 165137822067880712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (287348069) 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, 2477081 + ... + 2477196.

Almost surely, 2^287348066 is an apocalyptic number.

287348066 is a deficient number, since it is larger than the sum of its proper divisors (158536954).

287348066 is a wasteful number, since it uses less digits than its factorization.

287348066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954308.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 287348066 is about 16951.3440765032. The cubic root of 287348066 is about 659.8867773333.

The spelling of 287348066 in words is "two hundred eighty-seven million, three hundred forty-eight thousand, sixty-six".