91413383 has 4 divisors (see below), whose sum is σ = 92318568. Its totient is φ = 90508200.

The previous prime is 91413367. The next prime is 91413391. The reversal of 91413383 is 38331419.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91413383 - 2⁴ = 91413367 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 (91413353) 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, 452441 + ... + 452642.

It is an arithmetic number, because the mean of its divisors is an integer number (23079642).

Almost surely, 2^91413383 is an apocalyptic number.

91413383 is a deficient number, since it is larger than the sum of its proper divisors (905185).

91413383 is a wasteful number, since it uses less digits than its factorization.

91413383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905184.

The product of its digits is 7776, while the sum is 32.

The square root of 91413383 is about 9561.0346197470. The cubic root of 91413383 is about 450.4742046400.

The spelling of 91413383 in words is "ninety-one million, four hundred thirteen thousand, three hundred eighty-three".