961876585 has 4 divisors (see below), whose sum is σ = 1154251908. Its totient is φ = 769501264.

The previous prime is 961876567. The next prime is 961876613. The reversal of 961876585 is 585678169.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 585678169 = 17 ⋅34451657.

It can be written as a sum of positive squares in 2 ways, for example, as 136118889 + 825757696 = 11667^2 + 28736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961876585 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian 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, 96187654 + ... + 96187663.

It is an arithmetic number, because the mean of its divisors is an integer number (288562977).

Almost surely, 2^961876585 is an apocalyptic number.

It is an amenable number.

961876585 is a deficient number, since it is larger than the sum of its proper divisors (192375323).

961876585 is a wasteful number, since it uses less digits than its factorization.

961876585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192375322.

The product of its digits is 3628800, while the sum is 55.

The square root of 961876585 is about 31014.1352450782. The cubic root of 961876585 is about 987.1271969893.

The spelling of 961876585 in words is "nine hundred sixty-one million, eight hundred seventy-six thousand, five hundred eighty-five".