91828901 has 2 divisors, whose sum is σ = 91828902. Its totient is φ = 91828900.

The previous prime is 91828873. The next prime is 91828909. The reversal of 91828901 is 10982819.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70576801 + 21252100 = 8401^2 + 4610^2 .

It is a cyclic number.

It is not a de Polignac number, because 91828901 - 2¹⁰ = 91827877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91828909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45914450 + 45914451.

It is an arithmetic number, because the mean of its divisors is an integer number (45914451).

Almost surely, 2^91828901 is an apocalyptic number.

It is an amenable number.

91828901 is a deficient number, since it is larger than the sum of its proper divisors (1).

91828901 is an equidigital number, since it uses as much as digits as its factorization.

91828901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 91828901 is about 9582.7397439354. The cubic root of 91828901 is about 451.1557140660.

It can be divided in two parts, 91828 and 901, that added together give a palindrome (92729).

The spelling of 91828901 in words is "ninety-one million, eight hundred twenty-eight thousand, nine hundred one".