740777789 has 2 divisors, whose sum is σ = 740777790. Its totient is φ = 740777788.

The previous prime is 740777773. The next prime is 740777801. The reversal of 740777789 is 987777047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 657512164 + 83265625 = 25642^2 + 9125^2 .

It is a cyclic number.

It is not a de Polignac number, because 740777789 - 2⁴ = 740777773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740777749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370388894 + 370388895.

It is an arithmetic number, because the mean of its divisors is an integer number (370388895).

Almost surely, 2^740777789 is an apocalyptic number.

It is an amenable number.

740777789 is a deficient number, since it is larger than the sum of its proper divisors (1).

740777789 is an equidigital number, since it uses as much as digits as its factorization.

740777789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4840416, while the sum is 56.

The square root of 740777789 is about 27217.2333090636. The cubic root of 740777789 is about 904.8209566140.

The spelling of 740777789 in words is "seven hundred forty million, seven hundred seventy-seven thousand, seven hundred eighty-nine".