2273993 has 2 divisors, whose sum is σ = 2273994. Its totient is φ = 2273992.

The previous prime is 2273989. The next prime is 2274007. The reversal of 2273993 is 3993722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2229049 + 44944 = 1493^2 + 212^2 .

It is a cyclic number.

It is not a de Polignac number, because 2273993 - 2² = 2273989 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2⁷ + 2²¹ + 7⁶ + 3 + 9 + 9⁵ + 3 .

It is not a weakly prime, because it can be changed into another prime (2273923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136996 + 1136997.

It is an arithmetic number, because the mean of its divisors is an integer number (1136997).

2^2273993 is an apocalyptic number.

It is an amenable number.

2273993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273993 is an equidigital number, since it uses as much as digits as its factorization.

2273993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 35.

The square root of 2273993 is about 1507.9764587022. The cubic root of 2273993 is about 131.5011975391.

The spelling of 2273993 in words is "two million, two hundred seventy-three thousand, nine hundred ninety-three".