2661073 has 4 divisors (see below), whose sum is σ = 2678848. Its totient is φ = 2643300.

The previous prime is 2661067. The next prime is 2661079. The reversal of 2661073 is 3701662.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3701662 = 2 ⋅1850831.

It is an interprime number because it is at equal distance from previous prime (2661067) and next prime (2661079).

It is a cyclic number.

It is not a de Polignac number, because 2661073 - 2¹⁷ = 2530001 is a prime.

It is a super-2 number, since 2×2661073² = 14162619022658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2661079) 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, 8661 + ... + 8962.

It is an arithmetic number, because the mean of its divisors is an integer number (669712).

2^2661073 is an apocalyptic number.

It is an amenable number.

2661073 is a deficient number, since it is larger than the sum of its proper divisors (17775).

2661073 is a wasteful number, since it uses less digits than its factorization.

2661073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17774.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2661073 is about 1631.2795591192. The cubic root of 2661073 is about 138.5752261990.

The spelling of 2661073 in words is "two million, six hundred sixty-one thousand, seventy-three".