91422419 has 8 divisors (see below), whose sum is σ = 99947520. Its totient is φ = 82933000.

The previous prime is 91422349. The next prime is 91422439.

91422419 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 91422419 - 2¹² = 91418323 is a prime.

It is a super-2 number, since 2×91422419² = 16716117391623122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91422439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407 + ... + 13944.

It is an arithmetic number, because the mean of its divisors is an integer number (12493440).

Almost surely, 2^91422419 is an apocalyptic number.

91422419 is a deficient number, since it is larger than the sum of its proper divisors (8525101).

91422419 is a wasteful number, since it uses less digits than its factorization.

91422419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17841.

The product of its digits is 5184, while the sum is 32.

The square root of 91422419 is about 9561.5071510719. The cubic root of 91422419 is about 450.4890469263.

The spelling of 91422419 in words is "ninety-one million, four hundred twenty-two thousand, four hundred nineteen".