345768709 has 32 divisors (see below), whose sum is σ = 416747520. Its totient is φ = 282744000.

The previous prime is 345768691. The next prime is 345768727. The reversal of 345768709 is 907867543.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (345768691) and next prime (345768727).

It is not a de Polignac number, because 345768709 - 2⁷ = 345768581 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 (345768109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1446612 + ... + 1446850.

It is an arithmetic number, because the mean of its divisors is an integer number (13023360).

Almost surely, 2^345768709 is an apocalyptic number.

It is an amenable number.

345768709 is a deficient number, since it is larger than the sum of its proper divisors (70978811).

345768709 is a wasteful number, since it uses less digits than its factorization.

345768709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 345768709 is about 18594.8570577996. The cubic root of 345768709 is about 701.8784302866.

The spelling of 345768709 in words is "three hundred forty-five million, seven hundred sixty-eight thousand, seven hundred nine".