91106842 has 8 divisors (see below), whose sum is σ = 144699156. Its totient is φ = 42873792.

The previous prime is 91106783. The next prime is 91106849. The reversal of 91106842 is 24860119.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85766121 + 5340721 = 9261^2 + 2311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (91106849) 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, 1339773 + ... + 1339840.

Almost surely, 2^91106842 is an apocalyptic number.

91106842 is a deficient number, since it is larger than the sum of its proper divisors (53592314).

91106842 is a wasteful number, since it uses less digits than its factorization.

91106842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679632.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 91106842 is about 9544.9904138244. The cubic root of 91106842 is about 449.9701083025.

The spelling of 91106842 in words is "ninety-one million, one hundred six thousand, eight hundred forty-two".