347021401 has 4 divisors (see below), whose sum is σ = 362109312. Its totient is φ = 331933492.

The previous prime is 347021383. The next prime is 347021407. The reversal of 347021401 is 104120743.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104120743 = 103 ⋅1010881.

It is a cyclic number.

It is not a de Polignac number, because 347021401 - 2⁹ = 347020889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (347021407) 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, 7543921 + ... + 7543966.

It is an arithmetic number, because the mean of its divisors is an integer number (90527328).

Almost surely, 2^347021401 is an apocalyptic number.

It is an amenable number.

347021401 is a deficient number, since it is larger than the sum of its proper divisors (15087911).

347021401 is a wasteful number, since it uses less digits than its factorization.

347021401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15087910.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 347021401 is about 18628.5104342779. The cubic root of 347021401 is about 702.7250249433.

The spelling of 347021401 in words is "three hundred forty-seven million, twenty-one thousand, four hundred one".