740283217 has 2 divisors, whose sum is σ = 740283218. Its totient is φ = 740283216.

The previous prime is 740283163. The next prime is 740283259. The reversal of 740283217 is 712382047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 673713936 + 66569281 = 25956^2 + 8159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740283217 is a prime.

It is a super-3 number, since 3×740283217³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (740283917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370141608 + 370141609.

It is an arithmetic number, because the mean of its divisors is an integer number (370141609).

Almost surely, 2^740283217 is an apocalyptic number.

It is an amenable number.

740283217 is a deficient number, since it is larger than the sum of its proper divisors (1).

740283217 is an equidigital number, since it uses as much as digits as its factorization.

740283217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 740283217 is about 27208.1461514746. The cubic root of 740283217 is about 904.6195472561.

The spelling of 740283217 in words is "seven hundred forty million, two hundred eighty-three thousand, two hundred seventeen".