74689345 has 8 divisors (see below), whose sum is σ = 91534464. Its totient is φ = 58479984.

The previous prime is 74689337. The next prime is 74689367. The reversal of 74689345 is 54398647.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74689345 - 2³ = 74689337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74689295 and 74689304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158679 + ... + 159148.

It is an arithmetic number, because the mean of its divisors is an integer number (11441808).

Almost surely, 2^74689345 is an apocalyptic number.

It is an amenable number.

74689345 is a deficient number, since it is larger than the sum of its proper divisors (16845119).

74689345 is a wasteful number, since it uses less digits than its factorization.

74689345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317879.

The product of its digits is 725760, while the sum is 46.

The square root of 74689345 is about 8642.2997518022. The cubic root of 74689345 is about 421.1332678225.

The spelling of 74689345 in words is "seventy-four million, six hundred eighty-nine thousand, three hundred forty-five".