87694661 has 8 divisors (see below), whose sum is σ = 89032320. Its totient is φ = 86362848.

The previous prime is 87694657. The next prime is 87694679. The reversal of 87694661 is 16649678.

It is a happy number.

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 87694661 - 2² = 87694657 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 (87694601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35705 + ... + 38081.

It is an arithmetic number, because the mean of its divisors is an integer number (11129040).

Almost surely, 2^87694661 is an apocalyptic number.

It is an amenable number.

87694661 is a deficient number, since it is larger than the sum of its proper divisors (1337659).

87694661 is a wasteful number, since it uses less digits than its factorization.

87694661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923.

The product of its digits is 435456, while the sum is 47.

The square root of 87694661 is about 9364.5427544542. The cubic root of 87694661 is about 444.2809766173.

The spelling of 87694661 in words is "eighty-seven million, six hundred ninety-four thousand, six hundred sixty-one".