1098285 has 32 divisors (see below), whose sum is σ = 1918080. Its totient is φ = 534528.

The previous prime is 1098269. The next prime is 1098287. The reversal of 1098285 is 5828901.

It is a happy number.

It is not a de Polignac number, because 1098285 - 2⁴ = 1098269 is a prime.

It is a plaindrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15009 + ... + 15081.

It is an arithmetic number, because the mean of its divisors is an integer number (59940).

2^1098285 is an apocalyptic number.

1098285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1098285 is a deficient number, since it is larger than the sum of its proper divisors (819795).

1098285 is a wasteful number, since it uses less digits than its factorization.

1098285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1098285 is about 1047.9909350753. The cubic root of 1098285 is about 103.1743363563.

The spelling of 1098285 in words is "one million, ninety-eight thousand, two hundred eighty-five".