961787642 has 8 divisors (see below), whose sum is σ = 1505406816. Its totient is φ = 459985372.

The previous prime is 961787641. The next prime is 961787647. The reversal of 961787642 is 246787169.

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

It is not an unprimeable number, because it can be changed into a prime (961787641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10454168 + ... + 10454259.

It is an arithmetic number, because the mean of its divisors is an integer number (188175852).

Almost surely, 2^961787642 is an apocalyptic number.

961787642 is a deficient number, since it is larger than the sum of its proper divisors (543619174).

961787642 is a wasteful number, since it uses less digits than its factorization.

961787642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20908452.

The product of its digits is 1016064, while the sum is 50.

The square root of 961787642 is about 31012.7013012411. The cubic root of 961787642 is about 987.0967700919.

The spelling of 961787642 in words is "nine hundred sixty-one million, seven hundred eighty-seven thousand, six hundred forty-two".