87106723 has 4 divisors (see below), whose sum is σ = 95025528. Its totient is φ = 79187920.

The previous prime is 87106693. The next prime is 87106729. The reversal of 87106723 is 32760178.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87106723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87106729) 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 3 ways as a sum of consecutive naturals, for example, 3959386 + ... + 3959407.

It is an arithmetic number, because the mean of its divisors is an integer number (23756382).

Almost surely, 2^87106723 is an apocalyptic number.

87106723 is a deficient number, since it is larger than the sum of its proper divisors (7918805).

87106723 is a wasteful number, since it uses less digits than its factorization.

87106723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7918804.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 87106723 is about 9333.0982529919. The cubic root of 87106723 is about 443.2858738399.

The spelling of 87106723 in words is "eighty-seven million, one hundred six thousand, seven hundred twenty-three".