287426667 has 48 divisors (see below), whose sum is σ = 455970816. Its totient is φ = 160300800.

The previous prime is 287426647. The next prime is 287426683. The reversal of 287426667 is 766624782.

It is not a de Polignac number, because 287426667 - 2⁶ = 287426603 is a prime.

It is a super-2 number, since 2×287426667² = 165228177805457778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (287426647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289542 + ... + 290532.

It is an arithmetic number, because the mean of its divisors is an integer number (9499392).

Almost surely, 2^287426667 is an apocalyptic number.

287426667 is a deficient number, since it is larger than the sum of its proper divisors (168544149).

287426667 is a wasteful number, since it uses less digits than its factorization.

287426667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1069 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 48.

The square root of 287426667 is about 16953.6623477053. The cubic root of 287426667 is about 659.9469401789.

The spelling of 287426667 in words is "two hundred eighty-seven million, four hundred twenty-six thousand, six hundred sixty-seven".