87645662 has 8 divisors (see below), whose sum is σ = 141581496. Its totient is φ = 40451832.

The previous prime is 87645661. The next prime is 87645667. The reversal of 87645662 is 26654678.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87645661) 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 3 ways as a sum of consecutive naturals, for example, 1685468 + ... + 1685519.

It is an arithmetic number, because the mean of its divisors is an integer number (17697687).

Almost surely, 2^87645662 is an apocalyptic number.

87645662 is a deficient number, since it is larger than the sum of its proper divisors (53935834).

87645662 is a wasteful number, since it uses less digits than its factorization.

87645662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371002.

The product of its digits is 483840, while the sum is 44.

The square root of 87645662 is about 9361.9261906939. The cubic root of 87645662 is about 444.1982145309.

The spelling of 87645662 in words is "eighty-seven million, six hundred forty-five thousand, six hundred sixty-two".