961580929 has 8 divisors (see below), whose sum is σ = 964838952. Its totient is φ = 958329600.

The previous prime is 961580891. The next prime is 961580947. The reversal of 961580929 is 929085169.

It can be written as a sum of positive squares in 4 ways, for example, as 4297329 + 957283600 = 2073^2 + 30940^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 961580929 - 2⁷ = 961580801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961580729) 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 7 ways as a sum of consecutive naturals, for example, 504879 + ... + 506779.

It is an arithmetic number, because the mean of its divisors is an integer number (120604869).

Almost surely, 2^961580929 is an apocalyptic number.

It is an amenable number.

961580929 is a deficient number, since it is larger than the sum of its proper divisors (3258023).

961580929 is a wasteful number, since it uses less digits than its factorization.

961580929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347.

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 961580929 is about 31009.3684069831. The cubic root of 961580929 is about 987.0260474966.

The spelling of 961580929 in words is "nine hundred sixty-one million, five hundred eighty thousand, nine hundred twenty-nine".