91996337 has 2 divisors, whose sum is σ = 91996338. Its totient is φ = 91996336.

The previous prime is 91996321. The next prime is 91996349. The reversal of 91996337 is 73369919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76755121 + 15241216 = 8761^2 + 3904^2 .

It is a cyclic number.

It is not a de Polignac number, because 91996337 - 2⁴ = 91996321 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 91996291 and 91996300.

It is not a weakly prime, because it can be changed into another prime (91996397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45998168 + 45998169.

It is an arithmetic number, because the mean of its divisors is an integer number (45998169).

Almost surely, 2^91996337 is an apocalyptic number.

It is an amenable number.

91996337 is a deficient number, since it is larger than the sum of its proper divisors (1).

91996337 is an equidigital number, since it uses as much as digits as its factorization.

91996337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 275562, while the sum is 47.

The square root of 91996337 is about 9591.4720976501. The cubic root of 91996337 is about 451.4297521305.

The spelling of 91996337 in words is "ninety-one million, nine hundred ninety-six thousand, three hundred thirty-seven".