8961513 has 16 divisors (see below), whose sum is σ = 13602816. Its totient is φ = 5194640.

The previous prime is 8961509. The next prime is 8961527. The reversal of 8961513 is 3151698.

It is not a de Polignac number, because 8961513 - 2² = 8961509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (8961583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5145 + ... + 6662.

It is an arithmetic number, because the mean of its divisors is an integer number (850176).

Almost surely, 2^8961513 is an apocalyptic number.

It is an amenable number.

8961513 is a deficient number, since it is larger than the sum of its proper divisors (4641303).

8961513 is a wasteful number, since it uses less digits than its factorization.

8961513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11844.

The product of its digits is 6480, while the sum is 33.

The square root of 8961513 is about 2993.5786276629. The cubic root of 8961513 is about 207.7114542547.

The spelling of 8961513 in words is "eight million, nine hundred sixty-one thousand, five hundred thirteen".