358609969 has 9 divisors (see below), whose sum is σ = 371971873. Its totient is φ = 345713872.

The previous prime is 358609939. The next prime is 358609987. The reversal of 358609969 is 969906853.

The square root of 358609969 is 18937.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 23280625 + 335329344 = 4825^2 + 18312^2 .

It is not a de Polignac number, because 358609969 - 2⁷ = 358609841 is a prime.

It is a super-2 number, since 2×358609969² = 257202219732361922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (358609939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 548847 + ... + 549499.

Almost surely, 2^358609969 is an apocalyptic number.

358609969 is the 18937-th square number.

358609969 is the 9469-th centered octagonal number.

It is an amenable number.

358609969 is a deficient number, since it is larger than the sum of its proper divisors (13361904).

358609969 is an frugal number, since it uses more digits than its factorization.

358609969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 682 counting only the distinct ones).

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

The cubic root of 358609969 is about 710.4618888346.

The spelling of 358609969 in words is "three hundred fifty-eight million, six hundred nine thousand, nine hundred sixty-nine".