699505 has 4 divisors (see below), whose sum is σ = 839412. Its totient is φ = 559600.

The previous prime is 699493. The next prime is 699511. The reversal of 699505 is 505996.

699505 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 can be written as a sum of positive squares in 2 ways, for example, as 552049 + 147456 = 743^2 + 384^2 .

It is not a de Polignac number, because 699505 - 2¹¹ = 697457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69946 + ... + 69955.

It is an arithmetic number, because the mean of its divisors is an integer number (209853).

2⁶⁹⁹⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

699505 is a deficient number, since it is larger than the sum of its proper divisors (139907).

699505 is a wasteful number, since it uses less digits than its factorization.

699505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139906.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 699505 is about 836.3641551382. The cubic root of 699505 is about 88.7694660733.

The spelling of 699505 in words is "six hundred ninety-nine thousand, five hundred five".