87496961 has 4 divisors (see below), whose sum is σ = 87711300. Its totient is φ = 87282624.

The previous prime is 87496951. The next prime is 87496967. The reversal of 87496961 is 16969478.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74218225 + 13278736 = 8615^2 + 3644^2 .

It is a cyclic number.

It is not a de Polignac number, because 87496961 - 2¹⁰ = 87495937 is a prime.

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 (87496967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106556 + ... + 107373.

It is an arithmetic number, because the mean of its divisors is an integer number (21927825).

Almost surely, 2^87496961 is an apocalyptic number.

It is an amenable number.

87496961 is a deficient number, since it is larger than the sum of its proper divisors (214339).

87496961 is a wasteful number, since it uses less digits than its factorization.

87496961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214338.

The product of its digits is 653184, while the sum is 50.

The square root of 87496961 is about 9353.9810241415. The cubic root of 87496961 is about 443.9468611161.

The spelling of 87496961 in words is "eighty-seven million, four hundred ninety-six thousand, nine hundred sixty-one".