341991 has 24 divisors (see below), whose sum is σ = 553280. Its totient is φ = 202176.

The previous prime is 341983. The next prime is 341993. The reversal of 341991 is 199143.

341991 = 55³ + 56³.

It is not a de Polignac number, because 341991 - 2³ = 341983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (341993) 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 23 ways as a sum of consecutive naturals, for example, 4290 + ... + 4368.

2³⁴¹⁹⁹¹ is an apocalyptic number.

341991 is a deficient number, since it is larger than the sum of its proper divisors (211289).

341991 is a wasteful number, since it uses less digits than its factorization.

341991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 132 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 341991 is about 584.7999658003. The cubic root of 341991 is about 69.9312931287.

It can be divided in two parts, 34 and 1991, that added together give a square (2025 = 45²).

The spelling of 341991 in words is "three hundred forty-one thousand, nine hundred ninety-one".