94821865 has 16 divisors (see below), whose sum is σ = 115669008. Its totient is φ = 74612736.

The previous prime is 94821863. The next prime is 94821871. The reversal of 94821865 is 56812849.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 30437289 + 64384576 = 5517^2 + 8024^2 .

It is a cyclic number.

It is not a de Polignac number, because 94821865 - 2¹ = 94821863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (94821863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93099 + ... + 94111.

It is an arithmetic number, because the mean of its divisors is an integer number (7229313).

Almost surely, 2^94821865 is an apocalyptic number.

It is an amenable number.

94821865 is a deficient number, since it is larger than the sum of its proper divisors (20847143).

94821865 is a wasteful number, since it uses less digits than its factorization.

94821865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its digits is 138240, while the sum is 43.

The square root of 94821865 is about 9737.6519243604. The cubic root of 94821865 is about 456.0048876695.

The spelling of 94821865 in words is "ninety-four million, eight hundred twenty-one thousand, eight hundred sixty-five".