87714805 has 4 divisors (see below), whose sum is σ = 105257772. Its totient is φ = 70171840.

The previous prime is 87714799. The next prime is 87714817. The reversal of 87714805 is 50841778.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27279729 + 60435076 = 5223^2 + 7774^2 .

It is not a de Polignac number, because 87714805 - 2⁷ = 87714677 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8771476 + ... + 8771485.

It is an arithmetic number, because the mean of its divisors is an integer number (26314443).

Almost surely, 2^87714805 is an apocalyptic number.

It is an amenable number.

87714805 is a deficient number, since it is larger than the sum of its proper divisors (17542967).

87714805 is a wasteful number, since it uses less digits than its factorization.

87714805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17542966.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 87714805 is about 9365.6182390700. The cubic root of 87714805 is about 444.3149920321.

The spelling of 87714805 in words is "eighty-seven million, seven hundred fourteen thousand, eight hundred five".