898740 has 36 divisors (see below), whose sum is σ = 2726724. Its totient is φ = 239616.

The previous prime is 898727. The next prime is 898753. The reversal of 898740 is 47898.

It is an interprime number because it is at equal distance from previous prime (898727) and next prime (898753).

It can be written as a sum of positive squares in 2 ways, for example, as 318096 + 580644 = 564^2 + 762^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 898695 and 898704.

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 898740.

It is an unprimeable number.

898740 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 11 ways as a sum of consecutive naturals, for example, 2317 + ... + 2676.

2⁸⁹⁸⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

898740 is an abundant number, since it is smaller than the sum of its proper divisors (1827984).

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

898740 is a wasteful number, since it uses less digits than its factorization.

898740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008 (or 5003 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 898740 is about 948.0189871516. The cubic root of 898740 is about 96.5038612467.

Subtracting from 898740 its sum of digits (36), we obtain a square (898704 = 948²).

The spelling of 898740 in words is "eight hundred ninety-eight thousand, seven hundred forty".