91369433 has 2 divisors, whose sum is σ = 91369434. Its totient is φ = 91369432.

The previous prime is 91369417. The next prime is 91369463. The reversal of 91369433 is 33496319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81956809 + 9412624 = 9053^2 + 3068^2 .

It is a cyclic number.

It is not a de Polignac number, because 91369433 - 2⁴ = 91369417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91369463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45684716 + 45684717.

It is an arithmetic number, because the mean of its divisors is an integer number (45684717).

Almost surely, 2^91369433 is an apocalyptic number.

It is an amenable number.

91369433 is a deficient number, since it is larger than the sum of its proper divisors (1).

91369433 is an equidigital number, since it uses as much as digits as its factorization.

91369433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 38.

The square root of 91369433 is about 9558.7359519970. The cubic root of 91369433 is about 450.4019996215.

The spelling of 91369433 in words is "ninety-one million, three hundred sixty-nine thousand, four hundred thirty-three".