87650689 has 8 divisors (see below), whose sum is σ = 100255808. Its totient is φ = 75066480.

The previous prime is 87650687. The next prime is 87650713. The reversal of 87650689 is 98605678.

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 87650689 - 2¹ = 87650687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87650683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5134 + ... + 14200.

It is an arithmetic number, because the mean of its divisors is an integer number (12531976).

Almost surely, 2^87650689 is an apocalyptic number.

It is an amenable number.

87650689 is a deficient number, since it is larger than the sum of its proper divisors (12605119).

87650689 is a wasteful number, since it uses less digits than its factorization.

87650689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10455.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 87650689 is about 9362.1946679184. The cubic root of 87650689 is about 444.2067068383.

The spelling of 87650689 in words is "eighty-seven million, six hundred fifty thousand, six hundred eighty-nine".