91411426 has 4 divisors (see below), whose sum is σ = 137117142. Its totient is φ = 45705712.

The previous prime is 91411391. The next prime is 91411429. The reversal of 91411426 is 62411419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62411419 = 7 ⋅8915917.

It can be written as a sum of positive squares in only one way, i.e., 89586225 + 1825201 = 9465^2 + 1351^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91411394 and 91411403.

It is not an unprimeable number, because it can be changed into a prime (91411429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22852855 + ... + 22852858.

Almost surely, 2^91411426 is an apocalyptic number.

91411426 is a deficient number, since it is larger than the sum of its proper divisors (45705716).

91411426 is a wasteful number, since it uses less digits than its factorization.

91411426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45705715.

The product of its digits is 1728, while the sum is 28.

The square root of 91411426 is about 9560.9322767186. The cubic root of 91411426 is about 450.4709899965.

The spelling of 91411426 in words is "ninety-one million, four hundred eleven thousand, four hundred twenty-six".