345391871 has 8 divisors (see below), whose sum is σ = 381561600. Its totient is φ = 310017240.

The previous prime is 345391853. The next prime is 345391909. The reversal of 345391871 is 178193543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345391871 - 2⁶ = 345391807 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 (345391811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197861 + ... + 199598.

It is an arithmetic number, because the mean of its divisors is an integer number (47695200).

Almost surely, 2^345391871 is an apocalyptic number.

345391871 is a deficient number, since it is larger than the sum of its proper divisors (36169729).

345391871 is a wasteful number, since it uses less digits than its factorization.

345391871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397549.

The product of its digits is 90720, while the sum is 41.

The square root of 345391871 is about 18584.7214399355. The cubic root of 345391871 is about 701.6233555288.

The spelling of 345391871 in words is "three hundred forty-five million, three hundred ninety-one thousand, eight hundred seventy-one".