94650821 has 4 divisors (see below), whose sum is σ = 94699500. Its totient is φ = 94602144.

The previous prime is 94650797. The next prime is 94650839. The reversal of 94650821 is 12805649.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82609921 + 12040900 = 9089^2 + 3470^2 .

It is a cyclic number.

It is not a de Polignac number, because 94650821 - 2¹⁸ = 94388677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94650841) 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, 21296 + ... + 25353.

It is an arithmetic number, because the mean of its divisors is an integer number (23674875).

Almost surely, 2^94650821 is an apocalyptic number.

It is an amenable number.

94650821 is a deficient number, since it is larger than the sum of its proper divisors (48679).

94650821 is a wasteful number, since it uses less digits than its factorization.

94650821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48678.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 94650821 is about 9728.8653500807. The cubic root of 94650821 is about 455.7305351764.

The spelling of 94650821 in words is "ninety-four million, six hundred fifty thousand, eight hundred twenty-one".