961927905 has 16 divisors (see below), whose sum is σ = 1539630144. Its totient is φ = 512846400.

The previous prime is 961927871. The next prime is 961927909. The reversal of 961927905 is 509729169.

It is not a de Polignac number, because 961927905 - 2¹⁰ = 961926881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (961927909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39802 + ... + 59228.

It is an arithmetic number, because the mean of its divisors is an integer number (96226884).

Almost surely, 2^961927905 is an apocalyptic number.

It is an amenable number.

961927905 is a deficient number, since it is larger than the sum of its proper divisors (577702239).

961927905 is a wasteful number, since it uses less digits than its factorization.

961927905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22736.

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 961927905 is about 31014.9625987200. The cubic root of 961927905 is about 987.1447524178.

The spelling of 961927905 in words is "nine hundred sixty-one million, nine hundred twenty-seven thousand, nine hundred five".