74000669 has 2 divisors, whose sum is σ = 74000670. Its totient is φ = 74000668.

The previous prime is 74000617. The next prime is 74000671. The reversal of 74000669 is 96600047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66504025 + 7496644 = 8155^2 + 2738^2 .

It is a cyclic number.

It is not a de Polignac number, because 74000669 - 2²⁰ = 72952093 is a prime.

It is a super-2 number, since 2×74000669² = 10952198024895122, which contains 22 as substring.

Together with 74000671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74000699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37000334 + 37000335.

It is an arithmetic number, because the mean of its divisors is an integer number (37000335).

Almost surely, 2^74000669 is an apocalyptic number.

It is an amenable number.

74000669 is a deficient number, since it is larger than the sum of its proper divisors (1).

74000669 is an equidigital number, since it uses as much as digits as its factorization.

74000669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 74000669 is about 8602.3641517899. The cubic root of 74000669 is about 419.8349105514.

The spelling of 74000669 in words is "seventy-four million, six hundred sixty-nine", and thus it is an aban number.