91336436 has 12 divisors (see below), whose sum is σ = 160315428. Its totient is φ = 45532032.

The previous prime is 91336433. The next prime is 91336499. The reversal of 91336436 is 63463319.

It can be written as a sum of positive squares in 2 ways, for example, as 61152400 + 30184036 = 7820^2 + 5494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91336396 and 91336405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91336433) 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, 32531 + ... + 35226.

It is an arithmetic number, because the mean of its divisors is an integer number (13359619).

Almost surely, 2^91336436 is an apocalyptic number.

It is an amenable number.

91336436 is a deficient number, since it is larger than the sum of its proper divisors (68978992).

91336436 is a wasteful number, since it uses less digits than its factorization.

91336436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68098 (or 68096 counting only the distinct ones).

The product of its digits is 34992, while the sum is 35.

The square root of 91336436 is about 9557.0097833998. The cubic root of 91336436 is about 450.3477739586.

The spelling of 91336436 in words is "ninety-one million, three hundred thirty-six thousand, four hundred thirty-six".