94916581 has 8 divisors (see below), whose sum is σ = 98027384. Its totient is φ = 91834560.

The previous prime is 94916573. The next prime is 94916611. The reversal of 94916581 is 18561949.

It can be written as a sum of positive squares in 4 ways, for example, as 20784481 + 74132100 = 4559^2 + 8610^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 94916581 - 2³ = 94916573 is a prime.

It is a super-2 number, since 2×94916581² = 18018314697459122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94916501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390 + ... + 13783.

It is an arithmetic number, because the mean of its divisors is an integer number (12253423).

Almost surely, 2^94916581 is an apocalyptic number.

It is an amenable number.

94916581 is a deficient number, since it is larger than the sum of its proper divisors (3110803).

94916581 is a wasteful number, since it uses less digits than its factorization.

94916581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14391.

The product of its digits is 77760, while the sum is 43.

The square root of 94916581 is about 9742.5141005800. The cubic root of 94916581 is about 456.1566690686.

The spelling of 94916581 in words is "ninety-four million, nine hundred sixteen thousand, five hundred eighty-one".