87477 has 8 divisors (see below), whose sum is σ = 125664. Its totient is φ = 53808.

The previous prime is 87473. The next prime is 87481. The reversal of 87477 is 77478.

87477 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (87473) and next prime (87481).

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

It is not a de Polignac number, because 87477 - 2² = 87473 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87477.

It is not an unprimeable number, because it can be changed into a prime (87473) 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, 1083 + ... + 1160.

It is an arithmetic number, because the mean of its divisors is an integer number (15708).

2⁸⁷⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

87477 is a deficient number, since it is larger than the sum of its proper divisors (38187).

87477 is a wasteful number, since it uses less digits than its factorization.

87477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259.

The product of its digits is 10976, while the sum is 33.

The square root of 87477 is about 295.7651095041. The cubic root of 87477 is about 44.3913098811.

Subtracting from 87477 its reverse (77478), we obtain a palindrome (9999).

The spelling of 87477 in words is "eighty-seven thousand, four hundred seventy-seven".