91960369 has 2 divisors, whose sum is σ = 91960370. Its totient is φ = 91960368.

The previous prime is 91960331. The next prime is 91960391. The reversal of 91960369 is 96306919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91929744 + 30625 = 9588^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 91960369 - 2⁷ = 91960241 is a prime.

It is a super-3 number, since 3×91960369³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (91960069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45980184 + 45980185.

It is an arithmetic number, because the mean of its divisors is an integer number (45980185).

Almost surely, 2^91960369 is an apocalyptic number.

It is an amenable number.

91960369 is a deficient number, since it is larger than the sum of its proper divisors (1).

91960369 is an equidigital number, since it uses as much as digits as its factorization.

91960369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 91960369 is about 9589.5969154079. The cubic root of 91960369 is about 451.3709123172.

It can be divided in two parts, 91960 and 369, that added together give a palindrome (92329).

The spelling of 91960369 in words is "ninety-one million, nine hundred sixty thousand, three hundred sixty-nine".