91422016 has 28 divisors (see below), whose sum is σ = 207333088. Its totient is φ = 39180672.

The previous prime is 91422013. The next prime is 91422017. The reversal of 91422016 is 61022419.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91422011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101586 + ... + 102481.

Almost surely, 2^91422016 is an apocalyptic number.

It is an amenable number.

91422016 is an abundant number, since it is smaller than the sum of its proper divisors (115911072).

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

91422016 is a wasteful number, since it uses less digits than its factorization.

91422016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204086 (or 204076 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 91422016 is about 9561.4860769652. The cubic root of 91422016 is about 450.4883849904.

The spelling of 91422016 in words is "ninety-one million, four hundred twenty-two thousand, sixteen".