74654669 has 2 divisors, whose sum is σ = 74654670. Its totient is φ = 74654668.

The previous prime is 74654663. The next prime is 74654677. The reversal of 74654669 is 96645647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67158025 + 7496644 = 8195^2 + 2738^2 .

It is a cyclic number.

It is not a de Polignac number, because 74654669 - 2⁴ = 74654653 is a prime.

It is a super-2 number, since 2×74654669² = 11146639206999122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74654663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37327334 + 37327335.

It is an arithmetic number, because the mean of its divisors is an integer number (37327335).

Almost surely, 2^74654669 is an apocalyptic number.

It is an amenable number.

74654669 is a deficient number, since it is larger than the sum of its proper divisors (1).

74654669 is an equidigital number, since it uses as much as digits as its factorization.

74654669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 47.

The square root of 74654669 is about 8640.2933399278. The cubic root of 74654669 is about 421.0680845949.

The spelling of 74654669 in words is "seventy-four million, six hundred fifty-four thousand, six hundred sixty-nine".