961811027 has 4 divisors (see below), whose sum is σ = 1012432680. Its totient is φ = 911189376.

The previous prime is 961811021. The next prime is 961811029. The reversal of 961811027 is 720118169.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 961811027 - 2⁶ = 961810963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961811021) 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 3 ways as a sum of consecutive naturals, for example, 25310798 + ... + 25310835.

It is an arithmetic number, because the mean of its divisors is an integer number (253108170).

Almost surely, 2^961811027 is an apocalyptic number.

961811027 is a deficient number, since it is larger than the sum of its proper divisors (50621653).

961811027 is a wasteful number, since it uses less digits than its factorization.

961811027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50621652.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 961811027 is about 31013.0783218951. The cubic root of 961811027 is about 987.1047701499.

The spelling of 961811027 in words is "nine hundred sixty-one million, eight hundred eleven thousand, twenty-seven".