87349971 has 8 divisors (see below), whose sum is σ = 120223744. Its totient is φ = 56354760.

The previous prime is 87349939. The next prime is 87349979. The reversal of 87349971 is 17994378.

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

It is not a de Polignac number, because 87349971 - 2⁵ = 87349939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87349971.

It is not an unprimeable number, because it can be changed into a prime (87349979) 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, 469531 + ... + 469716.

It is an arithmetic number, because the mean of its divisors is an integer number (15027968).

Almost surely, 2^87349971 is an apocalyptic number.

87349971 is a deficient number, since it is larger than the sum of its proper divisors (32873773).

87349971 is a wasteful number, since it uses less digits than its factorization.

87349971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939281.

The product of its digits is 381024, while the sum is 48.

The square root of 87349971 is about 9346.1206390673. The cubic root of 87349971 is about 443.6981198093.

The spelling of 87349971 in words is "eighty-seven million, three hundred forty-nine thousand, nine hundred seventy-one".