1098442693 has 2 divisors, whose sum is σ = 1098442694. Its totient is φ = 1098442692.

The previous prime is 1098442663. The next prime is 1098442699. The reversal of 1098442693 is 3962448901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1098060769 + 381924 = 33137^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098442693 - 2²⁹ = 561571781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098442699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549221346 + 549221347.

It is an arithmetic number, because the mean of its divisors is an integer number (549221347).

Almost surely, 2^1098442693 is an apocalyptic number.

It is an amenable number.

1098442693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098442693 is an equidigital number, since it uses as much as digits as its factorization.

1098442693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 1098442693 is about 33142.7623018963. The cubic root of 1098442693 is about 1031.7927408259.

The spelling of 1098442693 in words is "one billion, ninety-eight million, four hundred forty-two thousand, six hundred ninety-three".