94201691 has 4 divisors (see below), whose sum is σ = 96392472. Its totient is φ = 92010912.

The previous prime is 94201687. The next prime is 94201703. The reversal of 94201691 is 19610249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19610249 = 79 ⋅248231.

It is a cyclic number.

It is not a de Polignac number, because 94201691 - 2² = 94201687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94201091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095326 + ... + 1095411.

It is an arithmetic number, because the mean of its divisors is an integer number (24098118).

Almost surely, 2^94201691 is an apocalyptic number.

94201691 is a deficient number, since it is larger than the sum of its proper divisors (2190781).

94201691 is a wasteful number, since it uses less digits than its factorization.

94201691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190780.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 94201691 is about 9705.7555604909. The cubic root of 94201691 is about 455.0085591917.

It can be divided in two parts, 9420 and 1691, that added together give a palindrome (11111).

The spelling of 94201691 in words is "ninety-four million, two hundred one thousand, six hundred ninety-one".