8961005 has 4 divisors (see below), whose sum is σ = 10753212. Its totient is φ = 7168800.

The previous prime is 8960983. The next prime is 8961019. The reversal of 8961005 is 5001698.

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 4609609 + 4351396 = 2147^2 + 2086^2 .

It is not a de Polignac number, because 8961005 - 2¹⁰ = 8959981 is a prime.

It is a super-2 number, since 2×8961005² = 160599221220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896096 + ... + 896105.

It is an arithmetic number, because the mean of its divisors is an integer number (2688303).

Almost surely, 2^8961005 is an apocalyptic number.

It is an amenable number.

8961005 is a deficient number, since it is larger than the sum of its proper divisors (1792207).

8961005 is a wasteful number, since it uses less digits than its factorization.

8961005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792206.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 8961005 is about 2993.4937781796. The cubic root of 8961005 is about 207.7075293441.

The spelling of 8961005 in words is "eight million, nine hundred sixty-one thousand, five".