475293487 has 4 divisors (see below), whose sum is σ = 477143136. Its totient is φ = 473443840.

The previous prime is 475293451. The next prime is 475293521. The reversal of 475293487 is 784392574.

It is a happy number.

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 475293487 - 2²⁷ = 341075759 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 475293487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475293407) 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, 924439 + ... + 924952.

It is an arithmetic number, because the mean of its divisors is an integer number (119285784).

Almost surely, 2^475293487 is an apocalyptic number.

475293487 is a deficient number, since it is larger than the sum of its proper divisors (1849649).

475293487 is a wasteful number, since it uses less digits than its factorization.

475293487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849648.

The product of its digits is 1693440, while the sum is 49.

The square root of 475293487 is about 21801.2267315397. The cubic root of 475293487 is about 780.4060383213.

The spelling of 475293487 in words is "four hundred seventy-five million, two hundred ninety-three thousand, four hundred eighty-seven".