690798 has 8 divisors (see below), whose sum is σ = 1381608. Its totient is φ = 230264.

The previous prime is 690793. The next prime is 690817. The reversal of 690798 is 897096.

690798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

690798 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690798.

It is not an unprimeable number, because it can be changed into a prime (690793) 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, 57561 + ... + 57572.

It is an arithmetic number, because the mean of its divisors is an integer number (172701).

2⁶⁹⁰⁷⁹⁸ is an apocalyptic number.

690798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

690798 is a wasteful number, since it uses less digits than its factorization.

690798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115138.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 690798 is about 831.1425870451. The cubic root of 690798 is about 88.3996116634.

The spelling of 690798 in words is "six hundred ninety thousand, seven hundred ninety-eight".