948699891 has 8 divisors (see below), whose sum is σ = 1405481360. Its totient is φ = 632466576.

The previous prime is 948699859. The next prime is 948699893. The reversal of 948699891 is 198996849.

It is not a de Polignac number, because 948699891 - 2⁵ = 948699859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (948699893) 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 7 ways as a sum of consecutive naturals, for example, 17568490 + ... + 17568543.

It is an arithmetic number, because the mean of its divisors is an integer number (175685170).

Almost surely, 2^948699891 is an apocalyptic number.

948699891 is a deficient number, since it is larger than the sum of its proper divisors (456781469).

948699891 is a wasteful number, since it uses less digits than its factorization.

948699891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35137042 (or 35137036 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 63.

The square root of 948699891 is about 30800.9722411485. The cubic root of 948699891 is about 982.5989225028.

The spelling of 948699891 in words is "nine hundred forty-eight million, six hundred ninety-nine thousand, eight hundred ninety-one".