87477145 has 16 divisors (see below), whose sum is σ = 120175488. Its totient is φ = 59880960.

The previous prime is 87477127. The next prime is 87477157. The reversal of 87477145 is 54177478.

It is not a de Polignac number, because 87477145 - 2⁵ = 87477113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22377 + ... + 25993.

It is an arithmetic number, because the mean of its divisors is an integer number (7510968).

Almost surely, 2^87477145 is an apocalyptic number.

It is an amenable number.

87477145 is a deficient number, since it is larger than the sum of its proper divisors (32698343).

87477145 is a wasteful number, since it uses less digits than its factorization.

87477145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320.

The product of its digits is 219520, while the sum is 43.

The square root of 87477145 is about 9352.9217360138. The cubic root of 87477145 is about 443.9133440845.

The spelling of 87477145 in words is "eighty-seven million, four hundred seventy-seven thousand, one hundred forty-five".