1098459 has 6 divisors (see below), whose sum is σ = 1586676. Its totient is φ = 732300.

The previous prime is 1098451. The next prime is 1098463. The reversal of 1098459 is 9548901.

It is not a de Polignac number, because 1098459 - 2³ = 1098451 is a prime.

It is a super-2 number, since 2×1098459² = 2413224349362, which contains 22 as substring.

1098459 is a lucky number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (1098451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61017 + ... + 61034.

It is an arithmetic number, because the mean of its divisors is an integer number (264446).

2^1098459 is an apocalyptic number.

1098459 is a deficient number, since it is larger than the sum of its proper divisors (488217).

1098459 is a wasteful number, since it uses less digits than its factorization.

1098459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122057 (or 122054 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1098459 is about 1048.0739477728. The cubic root of 1098459 is about 103.1797846649.

The spelling of 1098459 in words is "one million, ninety-eight thousand, four hundred fifty-nine".