740549497 has 2 divisors, whose sum is σ = 740549498. Its totient is φ = 740549496.

The previous prime is 740549479. The next prime is 740549501. The reversal of 740549497 is 794945047.

Together with previous prime (740549479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 523311376 + 217238121 = 22876^2 + 14739^2 .

It is a cyclic number.

It is not a de Polignac number, because 740549497 - 2²³ = 732160889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 740549497.

It is not a weakly prime, because it can be changed into another prime (740549897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370274748 + 370274749.

It is an arithmetic number, because the mean of its divisors is an integer number (370274749).

Almost surely, 2^740549497 is an apocalyptic number.

It is an amenable number.

740549497 is a deficient number, since it is larger than the sum of its proper divisors (1).

740549497 is an equidigital number, since it uses as much as digits as its factorization.

740549497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 740549497 is about 27213.0390989320. The cubic root of 740549497 is about 904.7279981893.

The spelling of 740549497 in words is "seven hundred forty million, five hundred forty-nine thousand, four hundred ninety-seven".