961311608 has 8 divisors (see below), whose sum is σ = 1802459280. Its totient is φ = 480655800.

The previous prime is 961311607. The next prime is 961311649. The reversal of 961311608 is 806113169.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961311607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60081968 + ... + 60081983.

It is an arithmetic number, because the mean of its divisors is an integer number (225307410).

Almost surely, 2^961311608 is an apocalyptic number.

It is an amenable number.

961311608 is a deficient number, since it is larger than the sum of its proper divisors (841147672).

961311608 is a wasteful number, since it uses less digits than its factorization.

961311608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120163957 (or 120163953 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 961311608 is about 31005.0255281301. The cubic root of 961311608 is about 986.9338896567.

The spelling of 961311608 in words is "nine hundred sixty-one million, three hundred eleven thousand, six hundred eight".