2730917 has 6 divisors (see below), whose sum is σ = 3176838. Its totient is φ = 2340744.

The previous prime is 2730911. The next prime is 2730919. The reversal of 2730917 is 7190372.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2660161 + 70756 = 1631^2 + 266^2 .

It is not a de Polignac number, because 2730917 - 2¹² = 2726821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2730917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27818 + ... + 27915.

It is an arithmetic number, because the mean of its divisors is an integer number (529473).

2^2730917 is an apocalyptic number.

It is an amenable number.

2730917 is a deficient number, since it is larger than the sum of its proper divisors (445921).

2730917 is an equidigital number, since it uses as much as digits as its factorization.

2730917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55747 (or 55740 counting only the distinct ones).

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

The square root of 2730917 is about 1652.5486377109. The cubic root of 2730917 is about 139.7771454443. Note that the first 3 decimals are identical.

The spelling of 2730917 in words is "two million, seven hundred thirty thousand, nine hundred seventeen".