3116447021 has 8 divisors (see below), whose sum is σ = 3312611640. Its totient is φ = 2921709568.

The previous prime is 3116446979. The next prime is 3116447029. The reversal of 3116447021 is 1207446113.

It is a happy number.

3116447021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1728064900 + 1388382121 = 41570^2 + 37261^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3116447021 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 (3116447029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352286 + ... + 361023.

It is an arithmetic number, because the mean of its divisors is an integer number (414076455).

Almost surely, 2^3116447021 is an apocalyptic number.

It is an amenable number.

3116447021 is a deficient number, since it is larger than the sum of its proper divisors (196164619).

3116447021 is a wasteful number, since it uses less digits than its factorization.

3116447021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713583.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 3116447021 is about 55825.1468515758. The cubic root of 3116447021 is about 1460.6738337316.

The spelling of 3116447021 in words is "three billion, one hundred sixteen million, four hundred forty-seven thousand, twenty-one".