287672303 has 4 divisors (see below), whose sum is σ = 287810688. Its totient is φ = 287533920.

The previous prime is 287672261. The next prime is 287672321. The reversal of 287672303 is 303276782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 287672303 - 2¹² = 287668207 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 (287672323) 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, 66026 + ... + 70247.

It is an arithmetic number, because the mean of its divisors is an integer number (71952672).

Almost surely, 2^287672303 is an apocalyptic number.

287672303 is a deficient number, since it is larger than the sum of its proper divisors (138385).

287672303 is a wasteful number, since it uses less digits than its factorization.

287672303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138384.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 287672303 is about 16960.9051350451. The cubic root of 287672303 is about 660.1348844305.

The spelling of 287672303 in words is "two hundred eighty-seven million, six hundred seventy-two thousand, three hundred three".