94386000721 has 8 divisors (see below), whose sum is σ = 94737810888. Its totient is φ = 94034304000.

The previous prime is 94386000719. The next prime is 94386000727. The reversal of 94386000721 is 12700068349.

94386000721 = 217239² + 217240².

It can be written as a sum of positive squares in 4 ways, for example, as 47193217600 + 47192783121 = 217240^2 + 217239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 94386000721 - 2¹ = 94386000719 is a prime.

It is a super-2 number, since 2×94386000721² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94386000727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875001 + ... + 1924681.

It is an arithmetic number, because the mean of its divisors is an integer number (11842226361).

Almost surely, 2^94386000721 is an apocalyptic number.

94386000721 is the 217240-th centered square number.

It is an amenable number.

94386000721 is a deficient number, since it is larger than the sum of its proper divisors (351810167).

94386000721 is a wasteful number, since it uses less digits than its factorization.

94386000721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56723.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 94386000721 in words is "ninety-four billion, three hundred eighty-six million, seven hundred twenty-one", and thus it is an aban number.