347421823 has 16 divisors (see below), whose sum is σ = 417743424. Its totient is φ = 282666240.

The previous prime is 347421817. The next prime is 347421829. The reversal of 347421823 is 328124743.

It is an interprime number because it is at equal distance from previous prime (347421817) and next prime (347421829).

It is a cyclic number.

It is not a de Polignac number, because 347421823 - 2²⁵ = 313867391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347421829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5740 + ... + 26977.

It is an arithmetic number, because the mean of its divisors is an integer number (26108964).

Almost surely, 2^347421823 is an apocalyptic number.

347421823 is a deficient number, since it is larger than the sum of its proper divisors (70321601).

347421823 is a wasteful number, since it uses less digits than its factorization.

347421823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32802.

The product of its digits is 32256, while the sum is 34.

The square root of 347421823 is about 18639.2548939060. The cubic root of 347421823 is about 702.9952084722.

The spelling of 347421823 in words is "three hundred forty-seven million, four hundred twenty-one thousand, eight hundred twenty-three".