74640611 has 4 divisors (see below), whose sum is σ = 74677800. Its totient is φ = 74603424.

The previous prime is 74640583. The next prime is 74640649. The reversal of 74640611 is 11604647.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74640611 - 2¹⁸ = 74378467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74640691) 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, 15401 + ... + 19658.

It is an arithmetic number, because the mean of its divisors is an integer number (18669450).

Almost surely, 2^74640611 is an apocalyptic number.

74640611 is a deficient number, since it is larger than the sum of its proper divisors (37189).

74640611 is a wasteful number, since it uses less digits than its factorization.

74640611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37188.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 74640611 is about 8639.4797875798. The cubic root of 74640611 is about 421.0416529070.

The spelling of 74640611 in words is "seventy-four million, six hundred forty thousand, six hundred eleven".