87830961 has 4 divisors (see below), whose sum is σ = 117107952. Its totient is φ = 58553972.

The previous prime is 87830947. The next prime is 87830969. The reversal of 87830961 is 16903878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87830961 - 2⁷ = 87830833 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (87830969) 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 3 ways as a sum of consecutive naturals, for example, 14638491 + ... + 14638496.

It is an arithmetic number, because the mean of its divisors is an integer number (29276988).

Almost surely, 2^87830961 is an apocalyptic number.

It is an amenable number.

87830961 is a deficient number, since it is larger than the sum of its proper divisors (29276991).

87830961 is a wasteful number, since it uses less digits than its factorization.

87830961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29276990.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 87830961 is about 9371.8173797829. The cubic root of 87830961 is about 444.5110330067.

The spelling of 87830961 in words is "eighty-seven million, eight hundred thirty thousand, nine hundred sixty-one".