291948 has 12 divisors (see below), whose sum is σ = 681240. Its totient is φ = 97312.

The previous prime is 291923. The next prime is 291971. The reversal of 291948 is 849192.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 291948.

It is an unprimeable number.

291948 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12153 + ... + 12176.

It is an arithmetic number, because the mean of its divisors is an integer number (56770).

2²⁹¹⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

291948 is an abundant number, since it is smaller than the sum of its proper divisors (389292).

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

291948 is a wasteful number, since it uses less digits than its factorization.

291948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24336 (or 24334 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 291948 is about 540.3221261433. The cubic root of 291948 is about 66.3389359734.

The spelling of 291948 in words is "two hundred ninety-one thousand, nine hundred forty-eight".