287440967 has 16 divisors (see below), whose sum is σ = 321884160. Its totient is φ = 254469600.

The previous prime is 287440943. The next prime is 287440969. The reversal of 287440967 is 769044782.

It is not a de Polignac number, because 287440967 - 2¹² = 287436871 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 (287440969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67034 + ... + 71192.

It is an arithmetic number, because the mean of its divisors is an integer number (20117760).

Almost surely, 2^287440967 is an apocalyptic number.

287440967 is a deficient number, since it is larger than the sum of its proper divisors (34443193).

287440967 is a wasteful number, since it uses less digits than its factorization.

287440967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 287440967 is about 16954.0840802445. The cubic root of 287440967 is about 659.9578845180.

The spelling of 287440967 in words is "two hundred eighty-seven million, four hundred forty thousand, nine hundred sixty-seven".