91163743 has 16 divisors (see below), whose sum is σ = 104368896. Its totient is φ = 78819840.

The previous prime is 91163687. The next prime is 91163771. The reversal of 91163743 is 34736119.

It is a de Polignac number, because none of the positive numbers 2^k-91163743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91163699 and 91163708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91163143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47896 + ... + 49762.

It is an arithmetic number, because the mean of its divisors is an integer number (6523056).

Almost surely, 2^91163743 is an apocalyptic number.

91163743 is a deficient number, since it is larger than the sum of its proper divisors (13205153).

91163743 is a wasteful number, since it uses less digits than its factorization.

91163743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094.

The product of its digits is 13608, while the sum is 34.

The square root of 91163743 is about 9547.9706220746. The cubic root of 91163743 is about 450.0637654495.

The spelling of 91163743 in words is "ninety-one million, one hundred sixty-three thousand, seven hundred forty-three".