91677403 has 4 divisors (see below), whose sum is σ = 92015968. Its totient is φ = 91338840.

The previous prime is 91677389. The next prime is 91677407. The reversal of 91677403 is 30477619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30477619 = 31 ⋅983149.

It is a cyclic number.

It is not a de Polignac number, because 91677403 - 2¹³ = 91669211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91677407) 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 3 ways as a sum of consecutive naturals, for example, 168876 + ... + 169417.

It is an arithmetic number, because the mean of its divisors is an integer number (23003992).

Almost surely, 2^91677403 is an apocalyptic number.

91677403 is a deficient number, since it is larger than the sum of its proper divisors (338565).

91677403 is a wasteful number, since it uses less digits than its factorization.

91677403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338564.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 91677403 is about 9574.8317478690. The cubic root of 91677403 is about 450.9074740991.

The spelling of 91677403 in words is "ninety-one million, six hundred seventy-seven thousand, four hundred three".