478132887 has 8 divisors (see below), whose sum is σ = 637611520. Its totient is φ = 318704760.

The previous prime is 478132883. The next prime is 478132903. The reversal of 478132887 is 788231874.

It is a happy number.

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

It is not a de Polignac number, because 478132887 - 2² = 478132883 is a prime.

It is a super-2 number, since 2×478132887² = 457222115261909538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478132883) 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, 31164 + ... + 43902.

It is an arithmetic number, because the mean of its divisors is an integer number (79701440).

Almost surely, 2^478132887 is an apocalyptic number.

478132887 is a deficient number, since it is larger than the sum of its proper divisors (159478633).

478132887 is a wasteful number, since it uses less digits than its factorization.

478132887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25253.

The product of its digits is 602112, while the sum is 48.

The square root of 478132887 is about 21866.2499528383. The cubic root of 478132887 is about 781.9570006860.

The spelling of 478132887 in words is "four hundred seventy-eight million, one hundred thirty-two thousand, eight hundred eighty-seven".