87477247 has 8 divisors (see below), whose sum is σ = 102770640. Its totient is φ = 73407360.

The previous prime is 87477241. The next prime is 87477307. The reversal of 87477247 is 74277478.

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

It is not a de Polignac number, because 87477247 - 2¹⁹ = 86952959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87477197 and 87477206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87477241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305722 + ... + 306007.

It is an arithmetic number, because the mean of its divisors is an integer number (12846330).

Almost surely, 2^87477247 is an apocalyptic number.

87477247 is a deficient number, since it is larger than the sum of its proper divisors (15293393).

87477247 is a wasteful number, since it uses less digits than its factorization.

87477247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611753.

The product of its digits is 614656, while the sum is 46.

The square root of 87477247 is about 9352.9271888538. The cubic root of 87477247 is about 443.9135166216.

The spelling of 87477247 in words is "eighty-seven million, four hundred seventy-seven thousand, two hundred forty-seven".