347897420 has 48 divisors (see below), whose sum is σ = 791706720. Its totient is φ = 127650816.

The previous prime is 347897357. The next prime is 347897441. The reversal of 347897420 is 24798743.

It is a super-2 number, since 2×347897420² = 242065229685312800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38276 + ... + 46484.

It is an arithmetic number, because the mean of its divisors is an integer number (16493890).

Almost surely, 2^347897420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347897420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395853360).

347897420 is an abundant number, since it is smaller than the sum of its proper divisors (443809300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

347897420 is a wasteful number, since it uses less digits than its factorization.

347897420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8394 (or 8392 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 347897420 is about 18652.0084709395. The cubic root of 347897420 is about 703.3158465189.

The spelling of 347897420 in words is "three hundred forty-seven million, eight hundred ninety-seven thousand, four hundred twenty".