87806701 has 8 divisors (see below), whose sum is σ = 88525304. Its totient is φ = 87091200.

The previous prime is 87806689. The next prime is 87806713. The reversal of 87806701 is 10760878.

It is a happy number.

It is the 3826-th star number.

It is an interprime number because it is at equal distance from previous prime (87806689) and next prime (87806713).

It can be written as a sum of positive squares in 4 ways, for example, as 20484676 + 67322025 = 4526^2 + 8205^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 87806701 - 2⁹ = 87806189 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 (87807701) 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 7 ways as a sum of consecutive naturals, for example, 115615 + ... + 116371.

It is an arithmetic number, because the mean of its divisors is an integer number (11065663).

Almost surely, 2^87806701 is an apocalyptic number.

It is an amenable number.

87806701 is a deficient number, since it is larger than the sum of its proper divisors (718603).

87806701 is a wasteful number, since it uses less digits than its factorization.

87806701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 87806701 is about 9370.5229843376. The cubic root of 87806701 is about 444.4701027525.

The spelling of 87806701 in words is "eighty-seven million, eight hundred six thousand, seven hundred one".