91869341 has 2 divisors, whose sum is σ = 91869342. Its totient is φ = 91869340.

The previous prime is 91869331. The next prime is 91869347. The reversal of 91869341 is 14396819.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54096025 + 37773316 = 7355^2 + 6146^2 .

It is an emirp because it is prime and its reverse (14396819) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91869341 - 2⁶ = 91869277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91869347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45934670 + 45934671.

It is an arithmetic number, because the mean of its divisors is an integer number (45934671).

Almost surely, 2^91869341 is an apocalyptic number.

It is an amenable number.

91869341 is a deficient number, since it is larger than the sum of its proper divisors (1).

91869341 is an equidigital number, since it uses as much as digits as its factorization.

91869341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 91869341 is about 9584.8495554182. The cubic root of 91869341 is about 451.2219316340.

The spelling of 91869341 in words is "ninety-one million, eight hundred sixty-nine thousand, three hundred forty-one".