91841044 has 6 divisors (see below), whose sum is σ = 160721834. Its totient is φ = 45920520.

The previous prime is 91841033. The next prime is 91841063. The reversal of 91841044 is 44014819.

It can be written as a sum of positive squares in only one way, i.e., 88736400 + 3104644 = 9420^2 + 1762^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91840997 and 91841015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11480127 + ... + 11480134.

Almost surely, 2^91841044 is an apocalyptic number.

It is an amenable number.

91841044 is a deficient number, since it is larger than the sum of its proper divisors (68880790).

91841044 is a wasteful number, since it uses less digits than its factorization.

91841044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22960265 (or 22960263 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 91841044 is about 9583.3733100615. The cubic root of 91841044 is about 451.1755993901.

The spelling of 91841044 in words is "ninety-one million, eight hundred forty-one thousand, forty-four".