87169023 has 12 divisors (see below), whose sum is σ = 126757800. Its totient is φ = 57721776.

The previous prime is 87169021. The next prime is 87169073. The reversal of 87169023 is 32096178.

It is not a de Polignac number, because 87169023 - 2¹ = 87169021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87169021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31161 + ... + 33842.

It is an arithmetic number, because the mean of its divisors is an integer number (10563150).

Almost surely, 2^87169023 is an apocalyptic number.

87169023 is a deficient number, since it is larger than the sum of its proper divisors (39588777).

87169023 is a wasteful number, since it uses less digits than its factorization.

87169023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65158 (or 65155 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 87169023 is about 9336.4352404973. The cubic root of 87169023 is about 443.3915301645.

The spelling of 87169023 in words is "eighty-seven million, one hundred sixty-nine thousand, twenty-three".