689889362 has 4 divisors (see below), whose sum is σ = 1034834046. Its totient is φ = 344944680.

The previous prime is 689889341. The next prime is 689889367. The reversal of 689889362 is 263988986.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 409293361 + 280596001 = 20231^2 + 16751^2 .

It is not an unprimeable number, because it can be changed into a prime (689889367) 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 as a sum of consecutive naturals, namely, 172472339 + ... + 172472342.

Almost surely, 2^689889362 is an apocalyptic number.

689889362 is a deficient number, since it is larger than the sum of its proper divisors (344944684).

689889362 is a wasteful number, since it uses less digits than its factorization.

689889362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344944683.

The product of its digits is 8957952, while the sum is 59.

The square root of 689889362 is about 26265.7450303623. The cubic root of 689889362 is about 883.6083598185.

The spelling of 689889362 in words is "six hundred eighty-nine million, eight hundred eighty-nine thousand, three hundred sixty-two".