347897423 has 4 divisors (see below), whose sum is σ = 356382768. Its totient is φ = 339412080.

The previous prime is 347897357. The next prime is 347897441. The reversal of 347897423 is 324798743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324798743 = 5153 ⋅63031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347897423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347897443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4242611 + ... + 4242692.

It is an arithmetic number, because the mean of its divisors is an integer number (89095692).

Almost surely, 2^347897423 is an apocalyptic number.

347897423 is a deficient number, since it is larger than the sum of its proper divisors (8485345).

347897423 is an equidigital number, since it uses as much as digits as its factorization.

347897423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8485344.

The product of its digits is 1016064, while the sum is 47.

The square root of 347897423 is about 18652.0085513598. The cubic root of 347897423 is about 703.3158485405.

The spelling of 347897423 in words is "three hundred forty-seven million, eight hundred ninety-seven thousand, four hundred twenty-three".