2971997038 has 4 divisors (see below), whose sum is σ = 4457995560. Its totient is φ = 1485998518.

The previous prime is 2971997027. The next prime is 2971997057. The reversal of 2971997038 is 8307991792.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2971997038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 742999258 + ... + 742999261.

It is an arithmetic number, because the mean of its divisors is an integer number (1114498890).

Almost surely, 2^2971997038 is an apocalyptic number.

2971997038 is a deficient number, since it is larger than the sum of its proper divisors (1485998522).

2971997038 is a wasteful number, since it uses less digits than its factorization.

2971997038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485998521.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The square root of 2971997038 is about 54516.0255154390. The cubic root of 2971997038 is about 1437.7480616194.

The spelling of 2971997038 in words is "two billion, nine hundred seventy-one million, nine hundred ninety-seven thousand, thirty-eight".