8358961 has 4 divisors (see below), whose sum is σ = 9001972. Its totient is φ = 7715952.

The previous prime is 8358953. The next prime is 8358983. The reversal of 8358961 is 1698538.

It is a happy number.

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 2307361 + 6051600 = 1519^2 + 2460^2 .

It is a cyclic number.

It is not a de Polignac number, because 8358961 - 2³ = 8358953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8358941) 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 3 ways as a sum of consecutive naturals, for example, 321486 + ... + 321511.

It is an arithmetic number, because the mean of its divisors is an integer number (2250493).

Almost surely, 2^8358961 is an apocalyptic number.

It is an amenable number.

8358961 is a deficient number, since it is larger than the sum of its proper divisors (643011).

8358961 is a wasteful number, since it uses less digits than its factorization.

8358961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643010.

The product of its digits is 51840, while the sum is 40.

The square root of 8358961 is about 2891.1867805453. The cubic root of 8358961 is about 202.9476840280.

The spelling of 8358961 in words is "eight million, three hundred fifty-eight thousand, nine hundred sixty-one".