690411 has 4 divisors (see below), whose sum is σ = 920552. Its totient is φ = 460272.

The previous prime is 690407. The next prime is 690419. The reversal of 690411 is 114096.

690411 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.

It is not a de Polignac number, because 690411 - 2² = 690407 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690411.

It is not an unprimeable number, because it can be changed into a prime (690419) 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, 115066 + ... + 115071.

It is an arithmetic number, because the mean of its divisors is an integer number (230138).

2⁶⁹⁰⁴¹¹ is an apocalyptic number.

690411 is a deficient number, since it is larger than the sum of its proper divisors (230141).

690411 is a wasteful number, since it uses less digits than its factorization.

690411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230140.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 690411 is about 830.9097423908. The cubic root of 690411 is about 88.3831007874.

The spelling of 690411 in words is "six hundred ninety thousand, four hundred eleven".