358969609 has 6 divisors (see below), whose sum is σ = 359943770. Its totient is φ = 357997920.

The previous prime is 358969561. The next prime is 358969613. The reversal of 358969609 is 906969853.

It can be written as a sum of positive squares in only one way, i.e., 262537209 + 96432400 = 16203^2 + 9820^2 .

It is not a de Polignac number, because 358969609 - 2¹⁵ = 358936841 is a prime.

It is a super-2 number, since 2×358969609² = 257718360371225762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 358969609.

It is not an unprimeable number, because it can be changed into a prime (358969619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 240337 + ... + 241825.

Almost surely, 2^358969609 is an apocalyptic number.

It is an amenable number.

358969609 is a deficient number, since it is larger than the sum of its proper divisors (974161).

358969609 is an frugal number, since it uses more digits than its factorization.

358969609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 55.

The square root of 358969609 is about 18946.4933167064. The cubic root of 358969609 is about 710.6993103310.

The spelling of 358969609 in words is "three hundred fifty-eight million, nine hundred sixty-nine thousand, six hundred nine".