94601821 has 4 divisors (see below), whose sum is σ = 100166652. Its totient is φ = 89036992.

The previous prime is 94601813. The next prime is 94601827. The reversal of 94601821 is 12810649.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12810649 = 47 ⋅272567.

It can be written as a sum of positive squares in 2 ways, for example, as 66096900 + 28504921 = 8130^2 + 5339^2 .

It is a cyclic number.

It is not a de Polignac number, because 94601821 - 2³ = 94601813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94601827) 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 3 ways as a sum of consecutive naturals, for example, 2782390 + ... + 2782423.

It is an arithmetic number, because the mean of its divisors is an integer number (25041663).

Almost surely, 2^94601821 is an apocalyptic number.

It is an amenable number.

94601821 is a deficient number, since it is larger than the sum of its proper divisors (5564831).

94601821 is a wasteful number, since it uses less digits than its factorization.

94601821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564830.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 94601821 is about 9726.3467447958. The cubic root of 94601821 is about 455.6518788739.

The spelling of 94601821 in words is "ninety-four million, six hundred one thousand, eight hundred twenty-one".