1098465789 has 8 divisors (see below), whose sum is σ = 1471563232. Its totient is φ = 728839440.

The previous prime is 1098465773. The next prime is 1098465793. The reversal of 1098465789 is 9875648901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1098465789 - 2⁴ = 1098465773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098465689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 867034 + ... + 868299.

It is an arithmetic number, because the mean of its divisors is an integer number (183945404).

Almost surely, 2^1098465789 is an apocalyptic number.

It is an amenable number.

1098465789 is a deficient number, since it is larger than the sum of its proper divisors (373097443).

1098465789 is a wasteful number, since it uses less digits than its factorization.

1098465789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735547.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The square root of 1098465789 is about 33143.1107320963. The cubic root of 1098465789 is about 1031.7999723116.

The spelling of 1098465789 in words is "one billion, ninety-eight million, four hundred sixty-five thousand, seven hundred eighty-nine".