91461677 has 2 divisors, whose sum is σ = 91461678. Its totient is φ = 91461676.

The previous prime is 91461673. The next prime is 91461707. The reversal of 91461677 is 77616419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76492516 + 14969161 = 8746^2 + 3869^2 .

It is a cyclic number.

It is not a de Polignac number, because 91461677 - 2² = 91461673 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91461673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45730838 + 45730839.

It is an arithmetic number, because the mean of its divisors is an integer number (45730839).

Almost surely, 2^91461677 is an apocalyptic number.

It is an amenable number.

91461677 is a deficient number, since it is larger than the sum of its proper divisors (1).

91461677 is an equidigital number, since it uses as much as digits as its factorization.

91461677 is an evil number, because the sum of its binary digits is even.

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

The square root of 91461677 is about 9563.5598497631. The cubic root of 91461677 is about 450.5535196904.

The spelling of 91461677 in words is "ninety-one million, four hundred sixty-one thousand, six hundred seventy-seven".