91443796 has 6 divisors (see below), whose sum is σ = 160026650. Its totient is φ = 45721896.

The previous prime is 91443787. The next prime is 91443797. The reversal of 91443796 is 69734419.

It can be written as a sum of positive squares in only one way, i.e., 63776196 + 27667600 = 7986^2 + 5260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91443797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11430471 + ... + 11430478.

Almost surely, 2^91443796 is an apocalyptic number.

It is an amenable number.

91443796 is a deficient number, since it is larger than the sum of its proper divisors (68582854).

91443796 is a wasteful number, since it uses less digits than its factorization.

91443796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22860953 (or 22860951 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 91443796 is about 9562.6249534320. The cubic root of 91443796 is about 450.5241563082.

The spelling of 91443796 in words is "ninety-one million, four hundred forty-three thousand, seven hundred ninety-six".