91224622 has 8 divisors (see below), whose sum is σ = 136949400. Its totient is φ = 45574824.

The previous prime is 91224619. The next prime is 91224641. The reversal of 91224622 is 22642219.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15597 + ... + 20632.

It is an arithmetic number, because the mean of its divisors is an integer number (17118675).

Almost surely, 2^91224622 is an apocalyptic number.

91224622 is a deficient number, since it is larger than the sum of its proper divisors (45724778).

91224622 is a wasteful number, since it uses less digits than its factorization.

91224622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37490.

The product of its digits is 3456, while the sum is 28.

The square root of 91224622 is about 9551.1581496696. The cubic root of 91224622 is about 450.1639271083.

The spelling of 91224622 in words is "ninety-one million, two hundred twenty-four thousand, six hundred twenty-two".