347871644 has 12 divisors (see below), whose sum is σ = 609568344. Its totient is φ = 173709264.

The previous prime is 347871637. The next prime is 347871653. The reversal of 347871644 is 446178743.

It is a junction number, because it is equal to n+sod(n) for n = 347871595 and 347871604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53162 + ... + 59345.

It is an arithmetic number, because the mean of its divisors is an integer number (50797362).

Almost surely, 2^347871644 is an apocalyptic number.

It is an amenable number.

347871644 is a deficient number, since it is larger than the sum of its proper divisors (261696700).

347871644 is a wasteful number, since it uses less digits than its factorization.

347871644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113284 (or 113282 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 347871644 is about 18651.3174869766. The cubic root of 347871644 is about 703.2984763440.

The spelling of 347871644 in words is "three hundred forty-seven million, eight hundred seventy-one thousand, six hundred forty-four".