74774269 has 2 divisors, whose sum is σ = 74774270. Its totient is φ = 74774268.

The previous prime is 74774261. The next prime is 74774333. The reversal of 74774269 is 96247747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67815225 + 6959044 = 8235^2 + 2638^2 .

It is an emirp because it is prime and its reverse (96247747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74774269 - 2³ = 74774261 is a prime.

It is a super-2 number, since 2×74774269² = 11182382608968722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74774261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37387134 + 37387135.

It is an arithmetic number, because the mean of its divisors is an integer number (37387135).

Almost surely, 2^74774269 is an apocalyptic number.

It is an amenable number.

74774269 is a deficient number, since it is larger than the sum of its proper divisors (1).

74774269 is an equidigital number, since it uses as much as digits as its factorization.

74774269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 46.

The square root of 74774269 is about 8647.2116315030. The cubic root of 74774269 is about 421.2928210366.

The spelling of 74774269 in words is "seventy-four million, seven hundred seventy-four thousand, two hundred sixty-nine".