87053017 has 4 divisors (see below), whose sum is σ = 87206580. Its totient is φ = 86899456.

The previous prime is 87053009. The next prime is 87053051. The reversal of 87053017 is 71035078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19501056 + 67551961 = 4416^2 + 8219^2 .

It is a cyclic number.

It is not a de Polignac number, because 87053017 - 2³ = 87053009 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 87053017.

It is not an unprimeable number, because it can be changed into a prime (87053077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75928 + ... + 77065.

It is an arithmetic number, because the mean of its divisors is an integer number (21801645).

Almost surely, 2^87053017 is an apocalyptic number.

It is an amenable number.

87053017 is a deficient number, since it is larger than the sum of its proper divisors (153563).

87053017 is a wasteful number, since it uses less digits than its factorization.

87053017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153562.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 87053017 is about 9330.2206297600. The cubic root of 87053017 is about 443.1947518814.

The spelling of 87053017 in words is "eighty-seven million, fifty-three thousand, seventeen".