941688891 has 48 divisors (see below), whose sum is σ = 1649636352. Its totient is φ = 509803200.

The previous prime is 941688877. The next prime is 941688893. The reversal of 941688891 is 198886149.

It is not a de Polignac number, because 941688891 - 2⁵ = 941688859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (941688893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28096 + ... + 51698.

It is an arithmetic number, because the mean of its divisors is an integer number (34367424).

Almost surely, 2^941688891 is an apocalyptic number.

941688891 is a deficient number, since it is larger than the sum of its proper divisors (707947461).

941688891 is a wasteful number, since it uses less digits than its factorization.

941688891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23664 (or 23661 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 941688891 is about 30686.9498484291. The cubic root of 941688891 is about 980.1724293985.

The spelling of 941688891 in words is "nine hundred forty-one million, six hundred eighty-eight thousand, eight hundred ninety-one".