1098650573 has 4 divisors (see below), whose sum is σ = 1099783008. Its totient is φ = 1097518140.

The previous prime is 1098650569. The next prime is 1098650603. The reversal of 1098650573 is 3750568901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3750568901 = 109 ⋅34408889.

It is a cyclic number.

It is not a de Polignac number, because 1098650573 - 2² = 1098650569 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 (1098650503) 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, 564761 + ... + 566702.

It is an arithmetic number, because the mean of its divisors is an integer number (274945752).

Almost surely, 2^1098650573 is an apocalyptic number.

It is an amenable number.

1098650573 is a deficient number, since it is larger than the sum of its proper divisors (1132435).

1098650573 is an equidigital number, since it uses as much as digits as its factorization.

1098650573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132434.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 1098650573 is about 33145.8982831964. The cubic root of 1098650573 is about 1031.8578255581.

The spelling of 1098650573 in words is "one billion, ninety-eight million, six hundred fifty thousand, five hundred seventy-three".