347961 has 4 divisors (see below), whose sum is σ = 463952. Its totient is φ = 231972.

The previous prime is 347959. The next prime is 347969. The reversal of 347961 is 169743.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 347961 - 2¹ = 347959 is a prime.

It is a D-number.

It is a Duffinian number.

347961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (347969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57991 + ... + 57996.

It is an arithmetic number, because the mean of its divisors is an integer number (115988).

2³⁴⁷⁹⁶¹ is an apocalyptic number.

It is an amenable number.

347961 is a deficient number, since it is larger than the sum of its proper divisors (115991).

347961 is a wasteful number, since it uses less digits than its factorization.

347961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115990.

The product of its digits is 4536, while the sum is 30.

The square root of 347961 is about 589.8821916281. The cubic root of 347961 is about 70.3358688743.

The spelling of 347961 in words is "three hundred forty-seven thousand, nine hundred sixty-one".