998735 has 8 divisors (see below), whose sum is σ = 1261680. Its totient is φ = 756864.

The previous prime is 998717. The next prime is 998737. The reversal of 998735 is 537899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 998735 - 2¹⁴ = 982351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 998692 and 998701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998737) 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, 5162 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (157710).

2⁹⁹⁸⁷³⁵ is an apocalyptic number.

998735 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

998735 is a deficient number, since it is larger than the sum of its proper divisors (262945).

998735 is a wasteful number, since it uses less digits than its factorization.

998735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10537.

The product of its digits is 68040, while the sum is 41.

The square root of 998735 is about 999.3672998453. The cubic root of 998735 is about 99.9578155405.

The spelling of 998735 in words is "nine hundred ninety-eight thousand, seven hundred thirty-five".