87683121 has 8 divisors (see below), whose sum is σ = 129900960. Its totient is φ = 58455396.

The previous prime is 87683111. The next prime is 87683131. The reversal of 87683121 is 12138678.

It is an interprime number because it is at equal distance from previous prime (87683111) and next prime (87683131).

It is not a de Polignac number, because 87683121 - 2⁷ = 87682993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87683111) 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, 1623735 + ... + 1623788.

It is an arithmetic number, because the mean of its divisors is an integer number (16237620).

Almost surely, 2^87683121 is an apocalyptic number.

It is an amenable number.

87683121 is a deficient number, since it is larger than the sum of its proper divisors (42217839).

87683121 is a wasteful number, since it uses less digits than its factorization.

87683121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247532 (or 3247526 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 87683121 is about 9363.9265802333. The cubic root of 87683121 is about 444.2614876795.

The spelling of 87683121 in words is "eighty-seven million, six hundred eighty-three thousand, one hundred twenty-one".