690248 has 16 divisors (see below), whose sum is σ = 1393980. Its totient is φ = 318528.

The previous prime is 690233. The next prime is 690259. The reversal of 690248 is 842096.

It can be written as a sum of positive squares in 2 ways, for example, as 515524 + 174724 = 718^2 + 418^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 690248.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690248.

It is an unprimeable number.

690248 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3215 + ... + 3422.

2⁶⁹⁰²⁴⁸ is an apocalyptic number.

It is an amenable number.

690248 is an abundant number, since it is smaller than the sum of its proper divisors (703732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690248 is a wasteful number, since it uses less digits than its factorization.

690248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6656 (or 6652 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 690248 is about 830.8116513386. The cubic root of 690248 is about 88.3761447476.

The spelling of 690248 in words is "six hundred ninety thousand, two hundred forty-eight".