94171661 has 2 divisors, whose sum is σ = 94171662. Its totient is φ = 94171660.

The previous prime is 94171589. The next prime is 94171681. The reversal of 94171661 is 16617149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93973636 + 198025 = 9694^2 + 445^2 .

It is an emirp because it is prime and its reverse (16617149) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94171661 - 2²⁶ = 27062797 is a prime.

It is a super-3 number, since 3×94171661³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94171681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47085830 + 47085831.

It is an arithmetic number, because the mean of its divisors is an integer number (47085831).

Almost surely, 2^94171661 is an apocalyptic number.

It is an amenable number.

94171661 is a deficient number, since it is larger than the sum of its proper divisors (1).

94171661 is an equidigital number, since it uses as much as digits as its factorization.

94171661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 94171661 is about 9704.2084169704. The cubic root of 94171661 is about 454.9602042238.

The spelling of 94171661 in words is "ninety-four million, one hundred seventy-one thousand, six hundred sixty-one".