87119071 has 4 divisors (see below), whose sum is σ = 93820552. Its totient is φ = 80417592.

The previous prime is 87119069. The next prime is 87119093. The reversal of 87119071 is 17091178.

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

It is a cyclic number.

It is not a de Polignac number, because 87119071 - 2¹ = 87119069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87149071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350721 + ... + 3350746.

It is an arithmetic number, because the mean of its divisors is an integer number (23455138).

Almost surely, 2^87119071 is an apocalyptic number.

87119071 is a deficient number, since it is larger than the sum of its proper divisors (6701481).

87119071 is a wasteful number, since it uses less digits than its factorization.

87119071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6701480.

The product of its (nonzero) digits is 3528, while the sum is 34.

The square root of 87119071 is about 9333.7597462116. The cubic root of 87119071 is about 443.3068191629.

The spelling of 87119071 in words is "eighty-seven million, one hundred nineteen thousand, seventy-one".