87898321 has 8 divisors (see below), whose sum is σ = 102791744. Its totient is φ = 73589040.

The previous prime is 87898303. The next prime is 87898337. The reversal of 87898321 is 12389878.

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

It is not a de Polignac number, because 87898321 - 2⁵ = 87898289 is a prime.

It is a super-2 number, since 2×87898321² = 15452229669238082, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87898021) 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, 145710 + ... + 146311.

It is an arithmetic number, because the mean of its divisors is an integer number (12848968).

Almost surely, 2^87898321 is an apocalyptic number.

It is an amenable number.

87898321 is a deficient number, since it is larger than the sum of its proper divisors (14893423).

87898321 is a wasteful number, since it uses less digits than its factorization.

87898321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292071.

The product of its digits is 193536, while the sum is 46.

The square root of 87898321 is about 9375.4104443486. The cubic root of 87898321 is about 444.6246399155.

It can be divided in two parts, 878 and 98321, that added together give a palindrome (99199).

The spelling of 87898321 in words is "eighty-seven million, eight hundred ninety-eight thousand, three hundred twenty-one".