91073677 has 2 divisors, whose sum is σ = 91073678. Its totient is φ = 91073676.

The previous prime is 91073603. The next prime is 91073681. The reversal of 91073677 is 77637019.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75933796 + 15139881 = 8714^2 + 3891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91073677 is a prime.

It is a Chen prime.

It is equal to p_5275678 and since 91073677 and 5275678 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91073377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45536838 + 45536839.

It is an arithmetic number, because the mean of its divisors is an integer number (45536839).

Almost surely, 2^91073677 is an apocalyptic number.

It is an amenable number.

91073677 is a deficient number, since it is larger than the sum of its proper divisors (1).

91073677 is an equidigital number, since it uses as much as digits as its factorization.

91073677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 91073677 is about 9543.2529569325. The cubic root of 91073677 is about 449.9155018299.

The spelling of 91073677 in words is "ninety-one million, seventy-three thousand, six hundred seventy-seven".