74608665 has 32 divisors (see below), whose sum is σ = 131901696. Its totient is φ = 35819520.

The previous prime is 74608663. The next prime is 74608669. The reversal of 74608665 is 56680647.

It is a happy number.

It is not a de Polignac number, because 74608665 - 2¹ = 74608663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74608663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496 + ... + 12225.

It is an arithmetic number, because the mean of its divisors is an integer number (4121928).

Almost surely, 2^74608665 is an apocalyptic number.

It is an amenable number.

74608665 is a deficient number, since it is larger than the sum of its proper divisors (57293031).

74608665 is a wasteful number, since it uses less digits than its factorization.

74608665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 74608665 is about 8637.6307515429. The cubic root of 74608665 is about 420.9815760674.

The spelling of 74608665 in words is "seventy-four million, six hundred eight thousand, six hundred sixty-five".