87693701 has 4 divisors (see below), whose sum is σ = 92852172. Its totient is φ = 82535232.

The previous prime is 87693649. The next prime is 87693707. The reversal of 87693701 is 10739678.

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 46104100 + 41589601 = 6790^2 + 6449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87693701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87693707) 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, 2579210 + ... + 2579243.

It is an arithmetic number, because the mean of its divisors is an integer number (23213043).

Almost surely, 2^87693701 is an apocalyptic number.

It is an amenable number.

87693701 is a deficient number, since it is larger than the sum of its proper divisors (5158471).

87693701 is a wasteful number, since it uses less digits than its factorization.

87693701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158470.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 87693701 is about 9364.4914971396. The cubic root of 87693701 is about 444.2793554190.

The spelling of 87693701 in words is "eighty-seven million, six hundred ninety-three thousand, seven hundred one".