91626842 has 4 divisors (see below), whose sum is σ = 137440266. Its totient is φ = 45813420.

The previous prime is 91626839. The next prime is 91626859. The reversal of 91626842 is 24862619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24862619 = 17 ⋅1462507.

It can be written as a sum of positive squares in only one way, i.e., 91604041 + 22801 = 9571^2 + 151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91626796 and 91626805.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22906709 + ... + 22906712.

Almost surely, 2^91626842 is an apocalyptic number.

91626842 is a deficient number, since it is larger than the sum of its proper divisors (45813424).

91626842 is a wasteful number, since it uses less digits than its factorization.

91626842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45813423.

The product of its digits is 41472, while the sum is 38.

The square root of 91626842 is about 9572.1910762375. The cubic root of 91626842 is about 450.8245655360.

The spelling of 91626842 in words is "ninety-one million, six hundred twenty-six thousand, eight hundred forty-two".