2720061 has 10 divisors (see below), whose sum is σ = 4063422. Its totient is φ = 1813320.

The previous prime is 2720009. The next prime is 2720071. The reversal of 2720061 is 1600272.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1454436 + 1265625 = 1206^2 + 1125^2 .

It is not a de Polignac number, because 2720061 - 2⁷ = 2719933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720071) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16710 + ... + 16871.

2^2720061 is an apocalyptic number.

It is an amenable number.

2720061 is a deficient number, since it is larger than the sum of its proper divisors (1343361).

2720061 is an equidigital number, since it uses as much as digits as its factorization.

2720061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33593 (or 33584 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2720061 is about 1649.2607434848. The cubic root of 2720061 is about 139.5916844388.

It can be divided in two parts, 27200 and 61, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 2720061 in words is "two million, seven hundred twenty thousand, sixty-one".