690058 has 8 divisors (see below), whose sum is σ = 1046052. Its totient is φ = 341376.

The previous prime is 690037. The next prime is 690059. The reversal of 690058 is 850096.

690058 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 651249 + 38809 = 807^2 + 197^2 .

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

It is not an unprimeable number, because it can be changed into a prime (690059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585 + ... + 1972.

2⁶⁹⁰⁰⁵⁸ is an apocalyptic number.

690058 is a deficient number, since it is larger than the sum of its proper divisors (355994).

690058 is a wasteful number, since it uses less digits than its factorization.

690058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 690058 is about 830.6972974556. The cubic root of 690058 is about 88.3680350979.

The spelling of 690058 in words is "six hundred ninety thousand, fifty-eight".