347808401 has 4 divisors (see below), whose sum is σ = 348702900. Its totient is φ = 346913904.

The previous prime is 347808379. The next prime is 347808431. The reversal of 347808401 is 104808743.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91776400 + 256032001 = 9580^2 + 16001^2 .

It is a cyclic number.

It is not a de Polignac number, because 347808401 - 2¹⁰ = 347807377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347808431) 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 3 ways as a sum of consecutive naturals, for example, 446666 + ... + 447443.

It is an arithmetic number, because the mean of its divisors is an integer number (87175725).

Almost surely, 2^347808401 is an apocalyptic number.

It is an amenable number.

347808401 is a deficient number, since it is larger than the sum of its proper divisors (894499).

347808401 is an equidigital number, since it uses as much as digits as its factorization.

347808401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894498.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 347808401 is about 18649.6220068933. The cubic root of 347808401 is about 703.2558539171.

The spelling of 347808401 in words is "three hundred forty-seven million, eight hundred eight thousand, four hundred one".