91863106 has 8 divisors (see below), whose sum is σ = 142239744. Its totient is φ = 44449860.

The previous prime is 91863091. The next prime is 91863139. The reversal of 91863106 is 60136819.

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

It is an unprimeable number.

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, 740770 + ... + 740893.

It is an arithmetic number, because the mean of its divisors is an integer number (17779968).

Almost surely, 2^91863106 is an apocalyptic number.

91863106 is a deficient number, since it is larger than the sum of its proper divisors (50376638).

91863106 is a wasteful number, since it uses less digits than its factorization.

91863106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481696.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 91863106 is about 9584.5242970113. The cubic root of 91863106 is about 451.2117235408.

The spelling of 91863106 in words is "ninety-one million, eight hundred sixty-three thousand, one hundred six".