2999971 has 4 divisors (see below), whose sum is σ = 3230752. Its totient is φ = 2769192.

The previous prime is 2999957. The next prime is 2999999. The reversal of 2999971 is 1799992.

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 2999971 - 2⁹ = 2999459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2999911) 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, 115371 + ... + 115396.

It is an arithmetic number, because the mean of its divisors is an integer number (807688).

2^2999971 is an apocalyptic number.

2999971 is a deficient number, since it is larger than the sum of its proper divisors (230781).

2999971 is a wasteful number, since it uses less digits than its factorization.

2999971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230780.

The product of its digits is 91854, while the sum is 46.

The square root of 2999971 is about 1732.0424359697. The cubic root of 2999971 is about 144.2244923044.

It can be divided in two parts, 29 and 99971, that added together give a 5-th power (100000 = 10⁵).

The spelling of 2999971 in words is "two million, nine hundred ninety-nine thousand, nine hundred seventy-one".