94228681 has 4 divisors (see below), whose sum is σ = 94852864. Its totient is φ = 93604500.

The previous prime is 94228669. The next prime is 94228697. The reversal of 94228681 is 18682249.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18682249 = 2719 ⋅6871.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94228681 is a prime.

It is a super-2 number, since 2×94228681² = 17758088645999522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94228621) 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, 311865 + ... + 312166.

It is an arithmetic number, because the mean of its divisors is an integer number (23713216).

Almost surely, 2^94228681 is an apocalyptic number.

It is an amenable number.

94228681 is a deficient number, since it is larger than the sum of its proper divisors (624183).

94228681 is a wasteful number, since it uses less digits than its factorization.

94228681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624182.

The product of its digits is 55296, while the sum is 40.

The square root of 94228681 is about 9707.1458730154. The cubic root of 94228681 is about 455.0520103167.

The spelling of 94228681 in words is "ninety-four million, two hundred twenty-eight thousand, six hundred eighty-one".