74340769 has 2 divisors, whose sum is σ = 74340770. Its totient is φ = 74340768.

The previous prime is 74340751. The next prime is 74340781. The reversal of 74340769 is 96704347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52128400 + 22212369 = 7220^2 + 4713^2 .

It is a cyclic number.

It is not a de Polignac number, because 74340769 - 2⁵ = 74340737 is a prime.

It is a super-2 number, since 2×74340769² = 11053099871022722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74340709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37170384 + 37170385.

It is an arithmetic number, because the mean of its divisors is an integer number (37170385).

Almost surely, 2^74340769 is an apocalyptic number.

It is an amenable number.

74340769 is a deficient number, since it is larger than the sum of its proper divisors (1).

74340769 is an equidigital number, since it uses as much as digits as its factorization.

74340769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 74340769 is about 8622.1093126914. The cubic root of 74340769 is about 420.4771014416.

The spelling of 74340769 in words is "seventy-four million, three hundred forty thousand, seven hundred sixty-nine".