94609681 has 4 divisors (see below), whose sum is σ = 94986864. Its totient is φ = 94232500.

The previous prime is 94609663. The next prime is 94609693. The reversal of 94609681 is 18690649.

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: 18690649 = 1373 ⋅13613.

It is a cyclic number.

It is not a de Polignac number, because 94609681 - 2⁹ = 94609169 is a prime.

It is a super-2 number, since 2×94609681² = 17901983477843522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94609631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188215 + ... + 188716.

It is an arithmetic number, because the mean of its divisors is an integer number (23746716).

Almost surely, 2^94609681 is an apocalyptic number.

It is an amenable number.

94609681 is a deficient number, since it is larger than the sum of its proper divisors (377183).

94609681 is a wasteful number, since it uses less digits than its factorization.

94609681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377182.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 94609681 is about 9726.7507935590. The cubic root of 94609681 is about 455.6644978156.

The spelling of 94609681 in words is "ninety-four million, six hundred nine thousand, six hundred eighty-one".