1098616829 has 4 divisors (see below), whose sum is σ = 1108884384. Its totient is φ = 1088349276.

The previous prime is 1098616819. The next prime is 1098616861. The reversal of 1098616829 is 9286168901.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1098616829 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 (1098616819) 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, 5133617 + ... + 5133830.

It is an arithmetic number, because the mean of its divisors is an integer number (277221096).

Almost surely, 2^1098616829 is an apocalyptic number.

It is an amenable number.

1098616829 is a deficient number, since it is larger than the sum of its proper divisors (10267555).

1098616829 is a wasteful number, since it uses less digits than its factorization.

1098616829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10267554.

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 1098616829 is about 33145.3892570294. The cubic root of 1098616829 is about 1031.8472612751.

The spelling of 1098616829 in words is "one billion, ninety-eight million, six hundred sixteen thousand, eight hundred twenty-nine".