2947516853 has 2 divisors, whose sum is σ = 2947516854. Its totient is φ = 2947516852.

The previous prime is 2947516849. The next prime is 2947516919. The reversal of 2947516853 is 3586157492.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1835094244 + 1112422609 = 42838^2 + 33353^2 .

It is a cyclic number.

It is not a de Polignac number, because 2947516853 - 2² = 2947516849 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2947516813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473758426 + 1473758427.

It is an arithmetic number, because the mean of its divisors is an integer number (1473758427).

Almost surely, 2^2947516853 is an apocalyptic number.

It is an amenable number.

2947516853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2947516853 is an equidigital number, since it uses as much as digits as its factorization.

2947516853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 50.

The square root of 2947516853 is about 54291.0384225610. The cubic root of 2947516853 is about 1433.7896211561.

The spelling of 2947516853 in words is "two billion, nine hundred forty-seven million, five hundred sixteen thousand, eight hundred fifty-three".