91396158 has 32 divisors (see below), whose sum is σ = 217990656. Its totient is φ = 24977568.

The previous prime is 91396141. The next prime is 91396163. The reversal of 91396158 is 85169319.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46341 + ... + 48272.

It is an arithmetic number, because the mean of its divisors is an integer number (6812208).

Almost surely, 2^91396158 is an apocalyptic number.

91396158 is an abundant number, since it is smaller than the sum of its proper divisors (126594498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91396158 is a wasteful number, since it uses less digits than its factorization.

91396158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94648.

The product of its digits is 58320, while the sum is 42.

The square root of 91396158 is about 9560.1337856748. The cubic root of 91396158 is about 450.4459086169.

The spelling of 91396158 in words is "ninety-one million, three hundred ninety-six thousand, one hundred fifty-eight".