91457677 has 4 divisors (see below), whose sum is σ = 94611420. Its totient is φ = 88303936.

The previous prime is 91457669. The next prime is 91457687. The reversal of 91457677 is 77675419.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72352036 + 19105641 = 8506^2 + 4371^2 .

It is a cyclic number.

It is not a de Polignac number, because 91457677 - 2³ = 91457669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91457647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576828 + ... + 1576885.

It is an arithmetic number, because the mean of its divisors is an integer number (23652855).

Almost surely, 2^91457677 is an apocalyptic number.

It is an amenable number.

91457677 is a deficient number, since it is larger than the sum of its proper divisors (3153743).

91457677 is a wasteful number, since it uses less digits than its factorization.

91457677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153742.

The product of its digits is 370440, while the sum is 46.

The square root of 91457677 is about 9563.3507203281. The cubic root of 91457677 is about 450.5469514008.

The spelling of 91457677 in words is "ninety-one million, four hundred fifty-seven thousand, six hundred seventy-seven".