345888629 has 4 divisors (see below), whose sum is σ = 346043340. Its totient is φ = 345733920.

The previous prime is 345888619. The next prime is 345888643. The reversal of 345888629 is 926888543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 926888543 = 7 ⋅132412649.

It can be written as a sum of positive squares in 2 ways, for example, as 15194404 + 330694225 = 3898^2 + 18185^2 .

It is a cyclic number.

It is not a de Polignac number, because 345888629 - 2⁸ = 345888373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345888619) 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, 73952 + ... + 78489.

It is an arithmetic number, because the mean of its divisors is an integer number (86510835).

Almost surely, 2^345888629 is an apocalyptic number.

It is an amenable number.

345888629 is a deficient number, since it is larger than the sum of its proper divisors (154711).

345888629 is a wasteful number, since it uses less digits than its factorization.

345888629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154710.

The product of its digits is 3317760, while the sum is 53.

The square root of 345888629 is about 18598.0813257712. The cubic root of 345888629 is about 701.9595630693.

The spelling of 345888629 in words is "three hundred forty-five million, eight hundred eighty-eight thousand, six hundred twenty-nine".