345688471 has 4 divisors (see below), whose sum is σ = 356839744. Its totient is φ = 334537200.

The previous prime is 345688463. The next prime is 345688487. The reversal of 345688471 is 174886543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174886543 = 13 ⋅13452811.

It is a cyclic number.

It is not a de Polignac number, because 345688471 - 2³ = 345688463 is a prime.

It is a super-3 number, since 3×345688471³ (a number of 27 digits) contains 333 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 (345688271) 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, 5575590 + ... + 5575651.

It is an arithmetic number, because the mean of its divisors is an integer number (89209936).

Almost surely, 2^345688471 is an apocalyptic number.

345688471 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

345688471 is the 10735-th hex number.

345688471 is a deficient number, since it is larger than the sum of its proper divisors (11151273).

345688471 is a wasteful number, since it uses less digits than its factorization.

345688471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11151272.

The product of its digits is 645120, while the sum is 46.

The square root of 345688471 is about 18592.6994005712. The cubic root of 345688471 is about 701.8241341855.

The spelling of 345688471 in words is "three hundred forty-five million, six hundred eighty-eight thousand, four hundred seventy-one".