2730961 has 4 divisors (see below), whose sum is σ = 2756592. Its totient is φ = 2705332.

The previous prime is 2730953. The next prime is 2730967. The reversal of 2730961 is 1690372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2730961 - 2³ = 2730953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2730967) 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, 12655 + ... + 12868.

It is an arithmetic number, because the mean of its divisors is an integer number (689148).

2^2730961 is an apocalyptic number.

It is an amenable number.

2730961 is a deficient number, since it is larger than the sum of its proper divisors (25631).

2730961 is a wasteful number, since it uses less digits than its factorization.

2730961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25630.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2730961 is about 1652.5619504273. The cubic root of 2730961 is about 139.7778961276. Note that the first 3 decimals are identical.

The spelling of 2730961 in words is "two million, seven hundred thirty thousand, nine hundred sixty-one".