94686021 has 6 divisors (see below), whose sum is σ = 136768710. Its totient is φ = 63124008.

The previous prime is 94686001. The next prime is 94686029. The reversal of 94686021 is 12068649.

94686021 is a `hidden beast` number, since 9 + 46 + 8 + 602 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91584900 + 3101121 = 9570^2 + 1761^2 .

It is not a de Polignac number, because 94686021 - 2⁵ = 94685989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94686029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5260326 + ... + 5260343.

It is an arithmetic number, because the mean of its divisors is an integer number (22794785).

Almost surely, 2^94686021 is an apocalyptic number.

It is an amenable number.

94686021 is a deficient number, since it is larger than the sum of its proper divisors (42082689).

94686021 is a wasteful number, since it uses less digits than its factorization.

94686021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10520675 (or 10520672 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 94686021 is about 9730.6742315217. The cubic root of 94686021 is about 455.7870225422.

The spelling of 94686021 in words is "ninety-four million, six hundred eighty-six thousand, twenty-one".