87105651 has 8 divisors (see below), whose sum is σ = 116344464. Its totient is φ = 57968640.

The previous prime is 87105649. The next prime is 87105661. The reversal of 87105651 is 15650178.

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

It is not a de Polignac number, because 87105651 - 2¹ = 87105649 is a prime.

It is a super-2 number, since 2×87105651² = 15174788872267602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (87105611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23430 + ... + 26891.

It is an arithmetic number, because the mean of its divisors is an integer number (14543058).

Almost surely, 2^87105651 is an apocalyptic number.

87105651 is a deficient number, since it is larger than the sum of its proper divisors (29238813).

87105651 is a wasteful number, since it uses less digits than its factorization.

87105651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50901.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 87105651 is about 9333.0408227973. The cubic root of 87105651 is about 443.2840553641.

The spelling of 87105651 in words is "eighty-seven million, one hundred five thousand, six hundred fifty-one".