91429097 has 2 divisors, whose sum is σ = 91429098. Its totient is φ = 91429096.

The previous prime is 91429049. The next prime is 91429103. The reversal of 91429097 is 79092419.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90421081 + 1008016 = 9509^2 + 1004^2 .

It is a cyclic number.

It is not a de Polignac number, because 91429097 - 2⁶ = 91429033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91425097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45714548 + 45714549.

It is an arithmetic number, because the mean of its divisors is an integer number (45714549).

Almost surely, 2^91429097 is an apocalyptic number.

It is an amenable number.

91429097 is a deficient number, since it is larger than the sum of its proper divisors (1).

91429097 is an equidigital number, since it uses as much as digits as its factorization.

91429097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 91429097 is about 9561.8563574235. The cubic root of 91429097 is about 450.5000153979.

The spelling of 91429097 in words is "ninety-one million, four hundred twenty-nine thousand, ninety-seven".