1098575 has 6 divisors (see below), whose sum is σ = 1362264. Its totient is φ = 878840.

The previous prime is 1098541. The next prime is 1098593. The reversal of 1098575 is 5758901.

It is not a de Polignac number, because 1098575 - 2⁶ = 1098511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21947 + ... + 21996.

It is an arithmetic number, because the mean of its divisors is an integer number (227044).

2^1098575 is an apocalyptic number.

1098575 is a deficient number, since it is larger than the sum of its proper divisors (263689).

1098575 is an equidigital number, since it uses as much as digits as its factorization.

1098575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43953 (or 43948 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 1098575 is about 1048.1292859185. The cubic root of 1098575 is about 103.1834165509.

The spelling of 1098575 in words is "one million, ninety-eight thousand, five hundred seventy-five".