91677803 has 4 divisors (see below), whose sum is σ = 104774640. Its totient is φ = 78580968.

The previous prime is 91677779. The next prime is 91677847. The reversal of 91677803 is 30877619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30877619 = 101 ⋅305719.

It is a cyclic number.

It is not a de Polignac number, because 91677803 - 2⁶ = 91677739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91677203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6548408 + ... + 6548421.

It is an arithmetic number, because the mean of its divisors is an integer number (26193660).

Almost surely, 2^91677803 is an apocalyptic number.

91677803 is a deficient number, since it is larger than the sum of its proper divisors (13096837).

91677803 is a wasteful number, since it uses less digits than its factorization.

91677803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13096836.

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

The square root of 91677803 is about 9574.8526359417. The cubic root of 91677803 is about 450.9081298868.

The spelling of 91677803 in words is "ninety-one million, six hundred seventy-seven thousand, eight hundred three".