740740769 has 2 divisors, whose sum is σ = 740740770. Its totient is φ = 740740768.

The previous prime is 740740739. The next prime is 740740801. The reversal of 740740769 is 967047047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481144225 + 259596544 = 21935^2 + 16112^2 .

It is a cyclic number.

It is not a de Polignac number, because 740740769 - 2⁸ = 740740513 is a prime.

It is a super-2 number, since 2×740740769² = 1097393773717422722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (740740729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370370384 + 370370385.

It is an arithmetic number, because the mean of its divisors is an integer number (370370385).

Almost surely, 2^740740769 is an apocalyptic number.

It is an amenable number.

740740769 is a deficient number, since it is larger than the sum of its proper divisors (1).

740740769 is an equidigital number, since it uses as much as digits as its factorization.

740740769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 740740769 is about 27216.5532167466. The cubic root of 740740769 is about 904.8058837044.

The spelling of 740740769 in words is "seven hundred forty million, seven hundred forty thousand, seven hundred sixty-nine".