87172035 has 8 divisors (see below), whose sum is σ = 139475280. Its totient is φ = 46491744.

The previous prime is 87172013. The next prime is 87172061. The reversal of 87172035 is 53027178.

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

It is not a de Polignac number, because 87172035 - 2¹⁵ = 87139267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87171987 and 87172005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2905720 + ... + 2905749.

It is an arithmetic number, because the mean of its divisors is an integer number (17434410).

Almost surely, 2^87172035 is an apocalyptic number.

87172035 is a deficient number, since it is larger than the sum of its proper divisors (52303245).

87172035 is a wasteful number, since it uses less digits than its factorization.

87172035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811477.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 87172035 is about 9336.5965426380. The cubic root of 87172035 is about 443.3966370242.

The spelling of 87172035 in words is "eighty-seven million, one hundred seventy-two thousand, thirty-five".