698646 has 32 divisors (see below), whose sum is σ = 1542240. Its totient is φ = 210912.

The previous prime is 698641. The next prime is 698653. The reversal of 698646 is 646896.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 698646.

It is not an unprimeable number, because it can be changed into a prime (698641) by changing a digit.

698646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13156 + ... + 13208.

It is an arithmetic number, because the mean of its divisors is an integer number (48195).

2⁶⁹⁸⁶⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771120).

698646 is an abundant number, since it is smaller than the sum of its proper divisors (843594).

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

698646 is a wasteful number, since it uses less digits than its factorization.

698646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 71 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 698646 is about 835.8504650953. The cubic root of 698646 is about 88.7331145552.

The spelling of 698646 in words is "six hundred ninety-eight thousand, six hundred forty-six".