87961361 has 8 divisors (see below), whose sum is σ = 91896000. Its totient is φ = 84035952.

The previous prime is 87961351. The next prime is 87961369. The reversal of 87961361 is 16316978.

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

It is a cyclic number.

It is not a de Polignac number, because 87961361 - 2⁶ = 87961297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87961369) 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, 23390 + ... + 26888.

It is an arithmetic number, because the mean of its divisors is an integer number (11487000).

Almost surely, 2^87961361 is an apocalyptic number.

It is an amenable number.

87961361 is a deficient number, since it is larger than the sum of its proper divisors (3934639).

87961361 is a wasteful number, since it uses less digits than its factorization.

87961361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4615.

The product of its digits is 54432, while the sum is 41.

The square root of 87961361 is about 9378.7718279101. The cubic root of 87961361 is about 444.7309083057.

The spelling of 87961361 in words is "eighty-seven million, nine hundred sixty-one thousand, three hundred sixty-one".