91232797 has 2 divisors, whose sum is σ = 91232798. Its totient is φ = 91232796.

The previous prime is 91232741. The next prime is 91232803. The reversal of 91232797 is 79723219.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85729081 + 5503716 = 9259^2 + 2346^2 .

It is a cyclic number.

It is not a de Polignac number, because 91232797 - 2¹¹ = 91230749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91232717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45616398 + 45616399.

It is an arithmetic number, because the mean of its divisors is an integer number (45616399).

Almost surely, 2^91232797 is an apocalyptic number.

It is an amenable number.

91232797 is a deficient number, since it is larger than the sum of its proper divisors (1).

91232797 is an equidigital number, since it uses as much as digits as its factorization.

91232797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 40.

The square root of 91232797 is about 9551.5860986540. The cubic root of 91232797 is about 450.1773736979.

It can be divided in two parts, 91232 and 797, that added together give a palindrome (92029).

The spelling of 91232797 in words is "ninety-one million, two hundred thirty-two thousand, seven hundred ninety-seven".