91075636 has 12 divisors (see below), whose sum is σ = 159465600. Its totient is φ = 45514040.

The previous prime is 91075619. The next prime is 91075669. The reversal of 91075636 is 63657019.

It is a junction number, because it is equal to n+sod(n) for n = 91075595 and 91075604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4851 + ... + 14341.

It is an arithmetic number, because the mean of its divisors is an integer number (13288800).

Almost surely, 2^91075636 is an apocalyptic number.

It is an amenable number.

91075636 is a deficient number, since it is larger than the sum of its proper divisors (68389964).

91075636 is a wasteful number, since it uses less digits than its factorization.

91075636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11894 (or 11892 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 91075636 is about 9543.3555943389. The cubic root of 91075636 is about 449.9187277095.

The spelling of 91075636 in words is "ninety-one million, seventy-five thousand, six hundred thirty-six".