8987953 has 4 divisors (see below), whose sum is σ = 9679348. Its totient is φ = 8296560.

The previous prime is 8987947. The next prime is 8987959. The reversal of 8987953 is 3597898.

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

It is an interprime number because it is at equal distance from previous prime (8987947) and next prime (8987959).

It can be written as a sum of positive squares in 2 ways, for example, as 2347024 + 6640929 = 1532^2 + 2577^2 .

It is a cyclic number.

It is not a de Polignac number, because 8987953 - 2⁵ = 8987921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8987897 and 8987906.

It is not an unprimeable number, because it can be changed into a prime (8987959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345678 + ... + 345703.

It is an arithmetic number, because the mean of its divisors is an integer number (2419837).

Almost surely, 2^8987953 is an apocalyptic number.

It is an amenable number.

8987953 is a deficient number, since it is larger than the sum of its proper divisors (691395).

8987953 is a wasteful number, since it uses less digits than its factorization.

8987953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691394.

The product of its digits is 544320, while the sum is 49.

The square root of 8987953 is about 2997.9914943175. The cubic root of 8987953 is about 207.9155306052.

The spelling of 8987953 in words is "eight million, nine hundred eighty-seven thousand, nine hundred fifty-three".