1098447 has 16 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 594432.

The previous prime is 1098443. The next prime is 1098451. The reversal of 1098447 is 7448901.

It is an interprime number because it is at equal distance from previous prime (1098443) and next prime (1098451).

It is not a de Polignac number, because 1098447 - 2² = 1098443 is a prime.

1098447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978 + ... + 1775.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^1098447 is an apocalyptic number.

1098447 is a deficient number, since it is larger than the sum of its proper divisors (664113).

1098447 is a wasteful number, since it uses less digits than its factorization.

1098447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1098447 is about 1048.0682229702. The cubic root of 1098447 is about 103.1794089379.

The spelling of 1098447 in words is "one million, ninety-eight thousand, four hundred forty-seven".