87098961 has 8 divisors (see below), whose sum is σ = 116181184. Its totient is φ = 58041360.

The previous prime is 87098923. The next prime is 87098969. The reversal of 87098961 is 16989078.

It is a happy number.

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

It is not a de Polignac number, because 87098961 - 2⁶ = 87098897 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87098961.

It is not an unprimeable number, because it can be changed into a prime (87098969) 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, 4980 + ... + 14106.

It is an arithmetic number, because the mean of its divisors is an integer number (14522648).

Almost surely, 2^87098961 is an apocalyptic number.

It is an amenable number.

87098961 is a deficient number, since it is larger than the sum of its proper divisors (29082223).

87098961 is a wasteful number, since it uses less digits than its factorization.

87098961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12311.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 87098961 is about 9332.6824118257. The cubic root of 87098961 is about 443.2727065166.

The spelling of 87098961 in words is "eighty-seven million, ninety-eight thousand, nine hundred sixty-one".