2971247823 has 12 divisors (see below), whose sum is σ = 4340026080. Its totient is φ = 1958574816.

The previous prime is 2971247821. The next prime is 2971247827. The reversal of 2971247823 is 3287421792.

2971247823 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2971247823 - 2¹ = 2971247821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971247821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1853911 + ... + 1855512.

It is an arithmetic number, because the mean of its divisors is an integer number (361668840).

Almost surely, 2^2971247823 is an apocalyptic number.

2971247823 is a deficient number, since it is larger than the sum of its proper divisors (1368778257).

2971247823 is a wasteful number, since it uses less digits than its factorization.

2971247823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709518 (or 3709515 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 2971247823 is about 54509.1535707536. The cubic root of 2971247823 is about 1437.6272368082.

The spelling of 2971247823 in words is "two billion, nine hundred seventy-one million, two hundred forty-seven thousand, eight hundred twenty-three".