191947848 has 32 divisors (see below), whose sum is σ = 480284160. Its totient is φ = 63927360.

The previous prime is 191947843. The next prime is 191947849. The reversal of 191947848 is 848749191.

It is a super-2 number, since 2×191947848² = 73687952703662208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 191947848.

It is not an unprimeable number, because it can be changed into a prime (191947841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32586 + ... + 38022.

It is an arithmetic number, because the mean of its divisors is an integer number (15008880).

Almost surely, 2^191947848 is an apocalyptic number.

It is an amenable number.

191947848 is an abundant number, since it is smaller than the sum of its proper divisors (288336312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

191947848 is a wasteful number, since it uses less digits than its factorization.

191947848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6917 (or 6913 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 191947848 is about 13854.5244595403. The cubic root of 191947848 is about 576.8475899210.

The spelling of 191947848 in words is "one hundred ninety-one million, nine hundred forty-seven thousand, eight hundred forty-eight".