171394793 has 2 divisors, whose sum is σ = 171394794. Its totient is φ = 171394792.

The previous prime is 171394757. The next prime is 171394807. The reversal of 171394793 is 397493171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136726249 + 34668544 = 11693^2 + 5888^2 .

It is a cyclic number.

It is not a de Polignac number, because 171394793 - 2⁸ = 171394537 is a prime.

It is not a weakly prime, because it can be changed into another prime (171394393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85697396 + 85697397.

It is an arithmetic number, because the mean of its divisors is an integer number (85697397).

Almost surely, 2^171394793 is an apocalyptic number.

It is an amenable number.

171394793 is a deficient number, since it is larger than the sum of its proper divisors (1).

171394793 is an equidigital number, since it uses as much as digits as its factorization.

171394793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 44.

The square root of 171394793 is about 13091.7834155626. The cubic root of 171394793 is about 555.4767356283.

The spelling of 171394793 in words is "one hundred seventy-one million, three hundred ninety-four thousand, seven hundred ninety-three".