74689405 has 16 divisors (see below), whose sum is σ = 102602880. Its totient is φ = 51129792.

The previous prime is 74689403. The next prime is 74689411. The reversal of 74689405 is 50498647.

74689405 is nontrivially palindromic in base 3.

It is not a de Polignac number, because 74689405 - 2¹ = 74689403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74689403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25086 + ... + 27904.

It is an arithmetic number, because the mean of its divisors is an integer number (6412680).

Almost surely, 2^74689405 is an apocalyptic number.

It is an amenable number.

74689405 is a deficient number, since it is larger than the sum of its proper divisors (27913475).

74689405 is a wasteful number, since it uses less digits than its factorization.

74689405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 74689405 is about 8642.3032230997. The cubic root of 74689405 is about 421.1333805917.

The spelling of 74689405 in words is "seventy-four million, six hundred eighty-nine thousand, four hundred five".