2730971 has 4 divisors (see below), whose sum is σ = 2736432. Its totient is φ = 2725512.

The previous prime is 2730967. The next prime is 2730979. The reversal of 2730971 is 1790372.

It is a happy number.

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 2730971 - 2² = 2730967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2730979) 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, 1895 + ... + 3008.

It is an arithmetic number, because the mean of its divisors is an integer number (684108).

2^2730971 is an apocalyptic number.

2730971 is a deficient number, since it is larger than the sum of its proper divisors (5461).

2730971 is an equidigital number, since it uses as much as digits as its factorization.

2730971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 2730971 is about 1652.5649760297. The cubic root of 2730971 is about 139.7780667363.

The spelling of 2730971 in words is "two million, seven hundred thirty thousand, nine hundred seventy-one".