698478 has 32 divisors (see below), whose sum is σ = 1607040. Its totient is φ = 200160.

The previous prime is 698471. The next prime is 698483. The reversal of 698478 is 874896.

It is a happy number.

698478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 698478.

It is not an unprimeable number, because it can be changed into a prime (698471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976 + ... + 1532.

It is an arithmetic number, because the mean of its divisors is an integer number (50220).

2⁶⁹⁸⁴⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803520).

698478 is an abundant number, since it is smaller than the sum of its proper divisors (908562).

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

698478 is a wasteful number, since it uses less digits than its factorization.

698478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

The product of its digits is 96768, while the sum is 42.

The square root of 698478 is about 835.7499626084. The cubic root of 698478 is about 88.7260015785.

It can be divided in two parts, 698 and 478, that added together give a triangular number (1176 = T₄₈).

The spelling of 698478 in words is "six hundred ninety-eight thousand, four hundred seventy-eight".