174098993 has 2 divisors, whose sum is σ = 174098994. Its totient is φ = 174098992.

The previous prime is 174098963. The next prime is 174099019. The reversal of 174098993 is 399890471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133356304 + 40742689 = 11548^2 + 6383^2 .

It is an emirp because it is prime and its reverse (399890471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 174098993 - 2²² = 169904689 is a prime.

It is a super-2 number, since 2×174098993² = 60620918727228098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (174098933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87049496 + 87049497.

It is an arithmetic number, because the mean of its divisors is an integer number (87049497).

Almost surely, 2^174098993 is an apocalyptic number.

It is an amenable number.

174098993 is a deficient number, since it is larger than the sum of its proper divisors (1).

174098993 is an equidigital number, since it uses as much as digits as its factorization.

174098993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 174098993 is about 13194.6577447087. The cubic root of 174098993 is about 558.3828697318.

The spelling of 174098993 in words is "one hundred seventy-four million, ninety-eight thousand, nine hundred ninety-three".