345906969 has 16 divisors (see below), whose sum is σ = 474951360. Its totient is φ = 223767360.

The previous prime is 345906949. The next prime is 345906971. The reversal of 345906969 is 969609543.

It is a happy number.

It is not a de Polignac number, because 345906969 - 2¹⁷ = 345775897 is a prime.

It is a super-2 number, since 2×345906969² = 239303262405533922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345906919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39174 + ... + 47184.

It is an arithmetic number, because the mean of its divisors is an integer number (29684460).

Almost surely, 2^345906969 is an apocalyptic number.

It is an amenable number.

345906969 is a deficient number, since it is larger than the sum of its proper divisors (129044391).

345906969 is a wasteful number, since it uses less digits than its factorization.

345906969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440.

The product of its (nonzero) digits is 1574640, while the sum is 51.

The square root of 345906969 is about 18598.5743808497. The cubic root of 345906969 is about 701.9719694817.

The spelling of 345906969 in words is "three hundred forty-five million, nine hundred six thousand, nine hundred sixty-nine".