2730725 has 6 divisors (see below), whose sum is σ = 3386130. Its totient is φ = 2184560.

The previous prime is 2730713. The next prime is 2730743. The reversal of 2730725 is 5270372.

It can be written as a sum of positive squares in 3 ways, for example, as 474721 + 2256004 = 689^2 + 1502^2 .

It is not a de Polignac number, because 2730725 - 2⁴ = 2730709 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2730694 and 2730703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54590 + ... + 54639.

It is an arithmetic number, because the mean of its divisors is an integer number (564355).

2^2730725 is an apocalyptic number.

2730725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2730725 is a deficient number, since it is larger than the sum of its proper divisors (655405).

2730725 is a wasteful number, since it uses less digits than its factorization.

2730725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109239 (or 109234 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 2730725 is about 1652.4905446023. The cubic root of 2730725 is about 139.7738696410.

The spelling of 2730725 in words is "two million, seven hundred thirty thousand, seven hundred twenty-five".