4394712081 has 4 divisors (see below), whose sum is σ = 5859616112. Its totient is φ = 2929808052.

The previous prime is 4394712053. The next prime is 4394712083. The reversal of 4394712081 is 1802174934.

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.

It is not a de Polignac number, because 4394712081 - 2²¹ = 4392614929 is a prime.

It is a super-2 number, since 2×4394712081² = 38626988549774701122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4394712083) 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, 732452011 + ... + 732452016.

It is an arithmetic number, because the mean of its divisors is an integer number (1464904028).

Almost surely, 2^4394712081 is an apocalyptic number.

It is an amenable number.

4394712081 is a deficient number, since it is larger than the sum of its proper divisors (1464904031).

4394712081 is a wasteful number, since it uses less digits than its factorization.

4394712081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464904030.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 4394712081 is about 66292.6246350226. The cubic root of 4394712081 is about 1637.9858379779.

The spelling of 4394712081 in words is "four billion, three hundred ninety-four million, seven hundred twelve thousand, eighty-one".