91861062 has 8 divisors (see below), whose sum is σ = 183722136. Its totient is φ = 30620352.

The previous prime is 91861061. The next prime is 91861073. The reversal of 91861062 is 26016819.

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

91861062 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91861061) 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 in 3 ways as a sum of consecutive naturals, for example, 7655083 + ... + 7655094.

It is an arithmetic number, because the mean of its divisors is an integer number (22965267).

Almost surely, 2^91861062 is an apocalyptic number.

91861062 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

91861062 is a wasteful number, since it uses less digits than its factorization.

91861062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15310182.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 91861062 is about 9584.4176661913. The cubic root of 91861062 is about 451.2083769539.

The spelling of 91861062 in words is "ninety-one million, eight hundred sixty-one thousand, sixty-two".