4094363721 has 16 divisors (see below), whose sum is σ = 6241737728. Its totient is φ = 2338621200.

The previous prime is 4094363717. The next prime is 4094363747. The reversal of 4094363721 is 1273634904.

It is not a de Polignac number, because 4094363721 - 2² = 4094363717 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4094363721.

It is not an unprimeable number, because it can be changed into a prime (4094363821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8676 + ... + 90906.

It is an arithmetic number, because the mean of its divisors is an integer number (390108608).

Almost surely, 2^4094363721 is an apocalyptic number.

It is an amenable number.

4094363721 is a deficient number, since it is larger than the sum of its proper divisors (2147374007).

4094363721 is a wasteful number, since it uses less digits than its factorization.

4094363721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84612.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 4094363721 is about 63987.2152933693. The cubic root of 4094363721 is about 1599.7869144614.

The spelling of 4094363721 in words is "four billion, ninety-four million, three hundred sixty-three thousand, seven hundred twenty-one".