87000053 has 8 divisors (see below), whose sum is σ = 103751808. Its totient is φ = 71329104.

The previous prime is 87000047. The next prime is 87000079. The reversal of 87000053 is 35000078.

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

It is not a de Polignac number, because 87000053 - 2⁴ = 87000037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86999992 and 87000028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87000553) 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, 270026 + ... + 270347.

It is an arithmetic number, because the mean of its divisors is an integer number (12968976).

Almost surely, 2^87000053 is an apocalyptic number.

It is an amenable number.

87000053 is a deficient number, since it is larger than the sum of its proper divisors (16751755).

87000053 is a wasteful number, since it uses less digits than its factorization.

87000053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540403.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 87000053 is about 9327.3818941866. The cubic root of 87000053 is about 443.1048521485.

The spelling of 87000053 in words is "eighty-seven million, fifty-three", and thus it is an aban number and an uban number.