91443413 has 8 divisors (see below), whose sum is σ = 93981888. Its totient is φ = 88923744.

The previous prime is 91443383. The next prime is 91443419. The reversal of 91443413 is 31434419.

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 91443413 - 2¹² = 91439317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91443419) 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, 5456 + ... + 14582.

It is an arithmetic number, because the mean of its divisors is an integer number (11747736).

Almost surely, 2^91443413 is an apocalyptic number.

It is an amenable number.

91443413 is a deficient number, since it is larger than the sum of its proper divisors (2538475).

91443413 is a wasteful number, since it uses less digits than its factorization.

91443413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9403.

The product of its digits is 5184, while the sum is 29.

The square root of 91443413 is about 9562.6049275289. The cubic root of 91443413 is about 450.5235273208.

The spelling of 91443413 in words is "ninety-one million, four hundred forty-three thousand, four hundred thirteen".