2730929 has 2 divisors, whose sum is σ = 2730930. Its totient is φ = 2730928.

The previous prime is 2730919. The next prime is 2730947. The reversal of 2730929 is 9290372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1385329 + 1345600 = 1177^2 + 1160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2730929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2730895 and 2730904.

It is not a weakly prime, because it can be changed into another prime (2730919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365464 + 1365465.

It is an arithmetic number, because the mean of its divisors is an integer number (1365465).

2^2730929 is an apocalyptic number.

It is an amenable number.

2730929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2730929 is an equidigital number, since it uses as much as digits as its factorization.

2730929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 2730929 is about 1652.5522684623. The cubic root of 2730929 is about 139.7773501769. Note that the first 3 decimals are identical.

The spelling of 2730929 in words is "two million, seven hundred thirty thousand, nine hundred twenty-nine".