74690689 has 8 divisors (see below), whose sum is σ = 77362560. Its totient is φ = 72025296.

The previous prime is 74690647. The next prime is 74690711. The reversal of 74690689 is 98609647.

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 74690689 - 2¹³ = 74682497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74690089) 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 7 ways as a sum of consecutive naturals, for example, 45094 + ... + 46720.

It is an arithmetic number, because the mean of its divisors is an integer number (9670320).

Almost surely, 2^74690689 is an apocalyptic number.

It is an amenable number.

74690689 is a deficient number, since it is larger than the sum of its proper divisors (2671871).

74690689 is a wasteful number, since it uses less digits than its factorization.

74690689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 74690689 is about 8642.3775085332. The cubic root of 74690689 is about 421.1357938397.

The spelling of 74690689 in words is "seventy-four million, six hundred ninety thousand, six hundred eighty-nine".