1098094643 has 4 divisors (see below), whose sum is σ = 1098196680. Its totient is φ = 1097992608.

The previous prime is 1098094637. The next prime is 1098094663. The reversal of 1098094643 is 3464908901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3464908901 = 2467 ⋅1404503.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1098094643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1098094594 and 1098094603.

It is not an unprimeable number, because it can be changed into a prime (1098094603) 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, 32678 + ... + 57131.

It is an arithmetic number, because the mean of its divisors is an integer number (274549170).

Almost surely, 2^1098094643 is an apocalyptic number.

1098094643 is a deficient number, since it is larger than the sum of its proper divisors (102037).

1098094643 is an equidigital number, since it uses as much as digits as its factorization.

1098094643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102036.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1098094643 is about 33137.5111165579. The cubic root of 1098094643 is about 1031.6837521634.

The spelling of 1098094643 in words is "one billion, ninety-eight million, ninety-four thousand, six hundred forty-three".