94549681 has 4 divisors (see below), whose sum is σ = 99526000. Its totient is φ = 89573364.

The previous prime is 94549661. The next prime is 94549691. The reversal of 94549681 is 18694549.

It is a happy number.

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: 18694549 = 331 ⋅56479.

It is a cyclic number.

It is not a de Polignac number, because 94549681 - 2¹¹ = 94547633 is a prime.

It is a super-2 number, since 2×94549681² = 17879284354403522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94549601) 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, 2488131 + ... + 2488168.

It is an arithmetic number, because the mean of its divisors is an integer number (24881500).

Almost surely, 2^94549681 is an apocalyptic number.

It is an amenable number.

94549681 is a deficient number, since it is larger than the sum of its proper divisors (4976319).

94549681 is a wasteful number, since it uses less digits than its factorization.

94549681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4976318.

The product of its digits is 311040, while the sum is 46.

The square root of 94549681 is about 9723.6660267617. Note that the first 3 decimals coincide. The cubic root of 94549681 is about 455.5681523143.

The spelling of 94549681 in words is "ninety-four million, five hundred forty-nine thousand, six hundred eighty-one".