740727497 has 2 divisors, whose sum is σ = 740727498. Its totient is φ = 740727496.

The previous prime is 740727479. The next prime is 740727511. The reversal of 740727497 is 794727047.

It is a happy number.

Together with previous prime (740727479) 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., 528034441 + 212693056 = 22979^2 + 14584^2 .

It is a cyclic number.

It is not a de Polignac number, because 740727497 - 2⁶ = 740727433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (740727437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370363748 + 370363749.

It is an arithmetic number, because the mean of its divisors is an integer number (370363749).

Almost surely, 2^740727497 is an apocalyptic number.

It is an amenable number.

740727497 is a deficient number, since it is larger than the sum of its proper divisors (1).

740727497 is an equidigital number, since it uses as much as digits as its factorization.

740727497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691488, while the sum is 47.

The square root of 740727497 is about 27216.3093934501. The cubic root of 740727497 is about 904.8004798097.

The spelling of 740727497 in words is "seven hundred forty million, seven hundred twenty-seven thousand, four hundred ninety-seven".