348047687 has 4 divisors (see below), whose sum is σ = 374820600. Its totient is φ = 321274776.

The previous prime is 348047683. The next prime is 348047701. The reversal of 348047687 is 786740843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786740843 = 7 ⋅112391549.

It is a cyclic number.

It is not a de Polignac number, because 348047687 - 2² = 348047683 is a prime.

It is a super-2 number, since 2×348047687² = 242274384852099938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348047683) 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, 13386437 + ... + 13386462.

It is an arithmetic number, because the mean of its divisors is an integer number (93705150).

Almost surely, 2^348047687 is an apocalyptic number.

348047687 is a deficient number, since it is larger than the sum of its proper divisors (26772913).

348047687 is a wasteful number, since it uses less digits than its factorization.

348047687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26772912.

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 348047687 is about 18656.0362081553. The cubic root of 348047687 is about 703.4170927902.

The spelling of 348047687 in words is "three hundred forty-eight million, forty-seven thousand, six hundred eighty-seven".