690797 has 4 divisors (see below), whose sum is σ = 693216. Its totient is φ = 688380.

The previous prime is 690793. The next prime is 690817. The reversal of 690797 is 797096.

690797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 690797 - 2² = 690793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 690797.

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 690797.

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, 713 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (173304).

2⁶⁹⁰⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

690797 is a deficient number, since it is larger than the sum of its proper divisors (2419).

690797 is a wasteful number, since it uses less digits than its factorization.

690797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 690797 is about 831.1419854634. The cubic root of 690797 is about 88.3995690075.

The spelling of 690797 in words is "six hundred ninety thousand, seven hundred ninety-seven".