2772361 has 4 divisors (see below), whose sum is σ = 2861824. Its totient is φ = 2682900.

The previous prime is 2772331. The next prime is 2772383. The reversal of 2772361 is 1632772.

2772361 = T₁₃₅₈ + T₁₃₅₉ + T₁₃₆₀.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2772361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2772311) 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, 44685 + ... + 44746.

It is an arithmetic number, because the mean of its divisors is an integer number (715456).

2^2772361 is an apocalyptic number.

2772361 is the 1360-th centered triangular number.

It is an amenable number.

2772361 is a deficient number, since it is larger than the sum of its proper divisors (89463).

2772361 is an equidigital number, since it uses as much as digits as its factorization.

2772361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89462.

The product of its digits is 3528, while the sum is 28.

The square root of 2772361 is about 1665.0408403400. The cubic root of 2772361 is about 140.4806776787.

The spelling of 2772361 in words is "two million, seven hundred seventy-two thousand, three hundred sixty-one".