91677429 has 6 divisors (see below), whose sum is σ = 132422966. Its totient is φ = 61118280.

The previous prime is 91677427. The next prime is 91677431. The reversal of 91677429 is 92477619.

It is an interprime number because it is at equal distance from previous prime (91677427) and next prime (91677431).

It can be written as a sum of positive squares in only one way, i.e., 72335025 + 19342404 = 8505^2 + 4398^2 .

It is not a de Polignac number, because 91677429 - 2¹ = 91677427 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91677427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5093182 + ... + 5093199.

Almost surely, 2^91677429 is an apocalyptic number.

It is an amenable number.

91677429 is a deficient number, since it is larger than the sum of its proper divisors (40745537).

91677429 is a wasteful number, since it uses less digits than its factorization.

91677429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10186387 (or 10186384 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 91677429 is about 9574.8331055951. The cubic root of 91677429 is about 450.9075167254.

The spelling of 91677429 in words is "ninety-one million, six hundred seventy-seven thousand, four hundred twenty-nine".