287423147 has 8 divisors (see below), whose sum is σ = 324365040. Its totient is φ = 252283360.

The previous prime is 287423117. The next prime is 287423173. The reversal of 287423147 is 741324782.

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

It is a cyclic number.

It is not a de Polignac number, because 287423147 - 2⁶ = 287423083 is a prime.

It is a super-2 number, since 2×287423147² = 165224130862767218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 287423147.

It is not an unprimeable number, because it can be changed into a prime (287423117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450188 + ... + 450825.

It is an arithmetic number, because the mean of its divisors is an integer number (40545630).

Almost surely, 2^287423147 is an apocalyptic number.

287423147 is a deficient number, since it is larger than the sum of its proper divisors (36941893).

287423147 is a wasteful number, since it uses less digits than its factorization.

287423147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901053.

The product of its digits is 75264, while the sum is 38.

The square root of 287423147 is about 16953.5585350097. The cubic root of 287423147 is about 659.9442461320.

The spelling of 287423147 in words is "two hundred eighty-seven million, four hundred twenty-three thousand, one hundred forty-seven".