87716474 has 16 divisors (see below), whose sum is σ = 139281120. Its totient is φ = 41359920.

The previous prime is 87716441. The next prime is 87716477. The reversal of 87716474 is 47461778.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87716477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15092 + ... + 20079.

It is an arithmetic number, because the mean of its divisors is an integer number (8705070).

Almost surely, 2^87716474 is an apocalyptic number.

87716474 is a deficient number, since it is larger than the sum of its proper divisors (51564646).

87716474 is a wasteful number, since it uses less digits than its factorization.

87716474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35245.

The product of its digits is 263424, while the sum is 44.

The square root of 87716474 is about 9365.7073411462. The cubic root of 87716474 is about 444.3178100931.

The spelling of 87716474 in words is "eighty-seven million, seven hundred sixteen thousand, four hundred seventy-four".