94821 has 4 divisors (see below), whose sum is σ = 126432. Its totient is φ = 63212.

The previous prime is 94819. The next prime is 94823. The reversal of 94821 is 12849.

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: 12849 = 3 ⋅4283.

It is an interprime number because it is at equal distance from previous prime (94819) and next prime (94823).

It is a cyclic number.

It is not a de Polignac number, because 94821 - 2¹ = 94819 is a prime.

It is a D-number.

It is a Curzon number.

94821 is a lucky number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 94791 and 94800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94823) 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, 15801 + ... + 15806.

It is an arithmetic number, because the mean of its divisors is an integer number (31608).

2⁹⁴⁸²¹ is an apocalyptic number.

It is an amenable number.

94821 is a deficient number, since it is larger than the sum of its proper divisors (31611).

94821 is a wasteful number, since it uses less digits than its factorization.

94821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31610.

The product of its digits is 576, while the sum is 24.

The square root of 94821 is about 307.9301868931. The cubic root of 94821 is about 45.6003501050.

It can be divided in two parts, 948 and 21, that added together give a palindrome (969).

The spelling of 94821 in words is "ninety-four thousand, eight hundred twenty-one".