91042363 has 4 divisors (see below), whose sum is σ = 91759360. Its totient is φ = 90325368.

The previous prime is 91042333. The next prime is 91042373. The reversal of 91042363 is 36324019.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36324019 = 17 ⋅2136707.

It is a cyclic number.

It is not a de Polignac number, because 91042363 - 2⁵ = 91042331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91042313) 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, 358308 + ... + 358561.

It is an arithmetic number, because the mean of its divisors is an integer number (22939840).

Almost surely, 2^91042363 is an apocalyptic number.

91042363 is a deficient number, since it is larger than the sum of its proper divisors (716997).

91042363 is a wasteful number, since it uses less digits than its factorization.

91042363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716996.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 91042363 is about 9541.6121803393. The cubic root of 91042363 is about 449.8639308766.

The spelling of 91042363 in words is "ninety-one million, forty-two thousand, three hundred sixty-three".