345757969 has 16 divisors (see below), whose sum is σ = 360581760. Its totient is φ = 331309440.

The previous prime is 345757939. The next prime is 345757987. The reversal of 345757969 is 969757543.

It is a cyclic number.

It is not a de Polignac number, because 345757969 - 2⁹ = 345757457 is a prime.

It is a super-2 number, since 2×345757969² = 239097146254009922, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (7144200) is a multiple of the sum of its prime divisors (840).

It is not an unprimeable number, because it can be changed into a prime (345757939) 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, 638839 + ... + 639379.

It is an arithmetic number, because the mean of its divisors is an integer number (22536360).

Almost surely, 2^345757969 is an apocalyptic number.

It is an amenable number.

345757969 is a deficient number, since it is larger than the sum of its proper divisors (14823791).

345757969 is a wasteful number, since it uses less digits than its factorization.

345757969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its digits is 7144200, while the sum is 55.

The square root of 345757969 is about 18594.5682660287. The cubic root of 345757969 is about 701.8711631431.

The spelling of 345757969 in words is "three hundred forty-five million, seven hundred fifty-seven thousand, nine hundred sixty-nine".