87246571 has 4 divisors (see below), whose sum is σ = 87270192. Its totient is φ = 87222952.

The previous prime is 87246563. The next prime is 87246583. The reversal of 87246571 is 17564278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17564278 = 2 ⋅8782139.

It is a cyclic number.

It is not a de Polignac number, because 87246571 - 2³ = 87246563 is a prime.

It is a super-2 number, since 2×87246571² = 15223928302516082, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87246541) 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, 4936 + ... + 14101.

It is an arithmetic number, because the mean of its divisors is an integer number (21817548).

Almost surely, 2^87246571 is an apocalyptic number.

87246571 is a deficient number, since it is larger than the sum of its proper divisors (23621).

87246571 is a wasteful number, since it uses less digits than its factorization.

87246571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23620.

The product of its digits is 94080, while the sum is 40.

The square root of 87246571 is about 9340.5872941695. The cubic root of 87246571 is about 443.5229756937.

The spelling of 87246571 in words is "eighty-seven million, two hundred forty-six thousand, five hundred seventy-one".