475987 has 4 divisors (see below), whose sum is σ = 477576. Its totient is φ = 474400.

The previous prime is 475973. The next prime is 475991. The reversal of 475987 is 789574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789574 = 2 ⋅394787.

It is a cyclic number.

It is not a de Polignac number, because 475987 - 2⁷ = 475859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475907) 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, 193 + ... + 994.

It is an arithmetic number, because the mean of its divisors is an integer number (119394).

2⁴⁷⁵⁹⁸⁷ is an apocalyptic number.

475987 is a deficient number, since it is larger than the sum of its proper divisors (1589).

475987 is a wasteful number, since it uses less digits than its factorization.

475987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588.

The product of its digits is 70560, while the sum is 40.

The square root of 475987 is about 689.9181110828. The cubic root of 475987 is about 78.0785424058.

The spelling of 475987 in words is "four hundred seventy-five thousand, nine hundred eighty-seven".