699906 has 16 divisors (see below), whose sum is σ = 1410624. Its totient is φ = 231504.

The previous prime is 699863. The next prime is 699931. The reversal of 699906 is 609996.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571 + ... + 1313.

It is an arithmetic number, because the mean of its divisors is an integer number (88164).

2⁶⁹⁹⁹⁰⁶ is an apocalyptic number.

699906 is an abundant number, since it is smaller than the sum of its proper divisors (710718).

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

699906 is a wasteful number, since it uses less digits than its factorization.

699906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 699906 is about 836.6038489034. The cubic root of 699906 is about 88.7864255689.

It can be divided in two parts, 69990 and 6, that added together give a palindrome (69996).

The spelling of 699906 in words is "six hundred ninety-nine thousand, nine hundred six".