1098407 has 4 divisors (see below), whose sum is σ = 1100616. Its totient is φ = 1096200.

The previous prime is 1098401. The next prime is 1098439. The reversal of 1098407 is 7048901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7048901 = 631 ⋅11171.

It is a cyclic number.

It is not a de Polignac number, because 1098407 - 2⁸ = 1098151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32 + ... + 1482.

It is an arithmetic number, because the mean of its divisors is an integer number (275154).

2^1098407 is an apocalyptic number.

1098407 is a deficient number, since it is larger than the sum of its proper divisors (2209).

1098407 is an equidigital number, since it uses as much as digits as its factorization.

1098407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1098407 is about 1048.0491400693. The cubic root of 1098407 is about 103.1781564950.

The spelling of 1098407 in words is "one million, ninety-eight thousand, four hundred seven".