699438 has 16 divisors (see below), whose sum is σ = 1431936. Its totient is φ = 227640.

The previous prime is 699437. The next prime is 699443. The reversal of 699438 is 834996.

699438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 699396 and 699405.

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 699438.

It is not an unprimeable number, because it can be changed into a prime (699437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098 + ... + 1613.

It is an arithmetic number, because the mean of its divisors is an integer number (89496).

2⁶⁹⁹⁴³⁸ is an apocalyptic number.

699438 is an abundant number, since it is smaller than the sum of its proper divisors (732498).

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

699438 is a wasteful number, since it uses less digits than its factorization.

699438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its digits is 46656, while the sum is 39.

The square root of 699438 is about 836.3240998560. The cubic root of 699438 is about 88.7666318099.

The spelling of 699438 in words is "six hundred ninety-nine thousand, four hundred thirty-eight".