2273737 has 4 divisors (see below), whose sum is σ = 2329236. Its totient is φ = 2218240.

The previous prime is 2273729. The next prime is 2273743. The reversal of 2273737 is 7373722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35721 + 2238016 = 189^2 + 1496^2 .

It is a cyclic number.

It is not a de Polignac number, because 2273737 - 2³ = 2273729 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2¹⁷ + 2¹⁹ + 7³ + 3⁸ + 7³ + 3¹³ + 7⁵ .

It is a Duffinian number.

2273737 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2273699 and 2273708.

It is not an unprimeable number, because it can be changed into a prime (2276737) 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, 27688 + ... + 27769.

It is an arithmetic number, because the mean of its divisors is an integer number (582309).

2^2273737 is an apocalyptic number.

It is an amenable number.

2273737 is a deficient number, since it is larger than the sum of its proper divisors (55499).

2273737 is an equidigital number, since it uses as much as digits as its factorization.

2273737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55498.

The product of its digits is 12348, while the sum is 31.

The square root of 2273737 is about 1507.8915743514. The cubic root of 2273737 is about 131.4962626705.

The spelling of 2273737 in words is "two million, two hundred seventy-three thousand, seven hundred thirty-seven".