698432 has 28 divisors (see below), whose sum is σ = 1584960. Its totient is φ = 299136.

The previous prime is 698419. The next prime is 698437. The reversal of 698432 is 234896.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 698432.

It is not an unprimeable number, because it can be changed into a prime (698437) by changing a digit.

698432 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 3 ways as a sum of consecutive naturals, for example, 332 + ... + 1227.

2⁶⁹⁸⁴³² is an apocalyptic number.

It is an amenable number.

698432 is an abundant number, since it is smaller than the sum of its proper divisors (886528).

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

698432 is a wasteful number, since it uses less digits than its factorization.

698432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578 (or 1568 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 698432 is about 835.7224419626. The cubic root of 698432 is about 88.7240537788.

The spelling of 698432 in words is "six hundred ninety-eight thousand, four hundred thirty-two".