3118980947 has 4 divisors (see below), whose sum is σ = 3119821536. Its totient is φ = 3118140360.

The previous prime is 3118980923. The next prime is 3118980961. The reversal of 3118980947 is 7490898113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3118980947 - 2⁶ = 3118980883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3118980895 and 3118980904.

It is not an unprimeable number, because it can be changed into a prime (3118980547) 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, 414704 + ... + 422157.

It is an arithmetic number, because the mean of its divisors is an integer number (779955384).

Almost surely, 2^3118980947 is an apocalyptic number.

3118980947 is a deficient number, since it is larger than the sum of its proper divisors (840589).

3118980947 is an equidigital number, since it uses as much as digits as its factorization.

3118980947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840588.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 3118980947 is about 55847.8374424650. The cubic root of 3118980947 is about 1461.0696088665.

The spelling of 3118980947 in words is "three billion, one hundred eighteen million, nine hundred eighty thousand, nine hundred forty-seven".