941999991 has 8 divisors (see below), whose sum is σ = 1282723584. Its totient is φ = 614638200.

The previous prime is 941999977. The next prime is 942000001. The reversal of 941999991 is 199999149.

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

It is not a de Polignac number, because 941999991 - 2¹⁵ = 941967223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (941995991) 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 7 ways as a sum of consecutive naturals, for example, 3340285 + ... + 3340566.

It is an arithmetic number, because the mean of its divisors is an integer number (160340448).

Almost surely, 2^941999991 is an apocalyptic number.

941999991 is a deficient number, since it is larger than the sum of its proper divisors (340723593).

941999991 is a wasteful number, since it uses less digits than its factorization.

941999991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680901.

The product of its digits is 2125764, while the sum is 60.

The square root of 941999991 is about 30692.0183598277. The cubic root of 941999991 is about 980.2803553715.

The spelling of 941999991 in words is "nine hundred forty-one million, nine hundred ninety-nine thousand, nine hundred ninety-one".