87385477 has 4 divisors (see below), whose sum is σ = 87824800. Its totient is φ = 86946156.

The previous prime is 87385469. The next prime is 87385481. The reversal of 87385477 is 77458378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77458378 = 2 ⋅38729189.

It is a cyclic number.

It is not a de Polignac number, because 87385477 - 2³ = 87385469 is a prime.

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 87385477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87385447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219363 + ... + 219760.

It is an arithmetic number, because the mean of its divisors is an integer number (21956200).

Almost surely, 2^87385477 is an apocalyptic number.

It is an amenable number.

87385477 is a deficient number, since it is larger than the sum of its proper divisors (439323).

87385477 is a wasteful number, since it uses less digits than its factorization.

87385477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439322.

The product of its digits is 1317120, while the sum is 49.

The square root of 87385477 is about 9348.0199507703. The cubic root of 87385477 is about 443.7582297753.

The spelling of 87385477 in words is "eighty-seven million, three hundred eighty-five thousand, four hundred seventy-seven".