91038677 has 2 divisors, whose sum is σ = 91038678. Its totient is φ = 91038676.

The previous prime is 91038667. The next prime is 91038691. The reversal of 91038677 is 77683019.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64144081 + 26894596 = 8009^2 + 5186^2 .

It is a cyclic number.

It is not a de Polignac number, because 91038677 - 2⁶ = 91038613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91038617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45519338 + 45519339.

It is an arithmetic number, because the mean of its divisors is an integer number (45519339).

Almost surely, 2^91038677 is an apocalyptic number.

It is an amenable number.

91038677 is a deficient number, since it is larger than the sum of its proper divisors (1).

91038677 is an equidigital number, since it uses as much as digits as its factorization.

91038677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 91038677 is about 9541.4190244429. The cubic root of 91038677 is about 449.8578596340.

The spelling of 91038677 in words is "ninety-one million, thirty-eight thousand, six hundred seventy-seven".