689448058 has 8 divisors (see below), whose sum is σ = 1113723828. Its totient is φ = 318206784.

The previous prime is 689448043. The next prime is 689448083. The reversal of 689448058 is 850844986.

It can be written as a sum of positive squares in 2 ways, for example, as 496710369 + 192737689 = 22287^2 + 13883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×689448058³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 689447996 and 689448014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13258591 + ... + 13258642.

Almost surely, 2^689448058 is an apocalyptic number.

689448058 is a deficient number, since it is larger than the sum of its proper divisors (424275770).

689448058 is a wasteful number, since it uses less digits than its factorization.

689448058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26517248.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The square root of 689448058 is about 26257.3429348820. The cubic root of 689448058 is about 883.4199126561.

The spelling of 689448058 in words is "six hundred eighty-nine million, four hundred forty-eight thousand, fifty-eight".