74120669 has 4 divisors (see below), whose sum is σ = 84709344. Its totient is φ = 63531996.

The previous prime is 74120633. The next prime is 74120671. The reversal of 74120669 is 96602147.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74120669 - 2⁸ = 74120413 is a prime.

It is a super-2 number, since 2×74120669² = 10987747146015122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74120609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5294327 + ... + 5294340.

It is an arithmetic number, because the mean of its divisors is an integer number (21177336).

Almost surely, 2^74120669 is an apocalyptic number.

It is an amenable number.

74120669 is a deficient number, since it is larger than the sum of its proper divisors (10588675).

74120669 is a wasteful number, since it uses less digits than its factorization.

74120669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10588674.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 74120669 is about 8609.3361532699. The cubic root of 74120669 is about 420.0617237328.

The spelling of 74120669 in words is "seventy-four million, one hundred twenty thousand, six hundred sixty-nine".