74506289 has 8 divisors (see below), whose sum is σ = 87532032. Its totient is φ = 62522640.

The previous prime is 74506283. The next prime is 74506309. The reversal of 74506289 is 98260547.

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 74506289 - 2⁴ = 74506273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74506283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260369 + ... + 260654.

It is an arithmetic number, because the mean of its divisors is an integer number (10941504).

Almost surely, 2^74506289 is an apocalyptic number.

It is an amenable number.

74506289 is a deficient number, since it is larger than the sum of its proper divisors (13025743).

74506289 is a wasteful number, since it uses less digits than its factorization.

74506289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521047.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 74506289 is about 8631.7025551162. The cubic root of 74506289 is about 420.7889347359.

The spelling of 74506289 in words is "seventy-four million, five hundred six thousand, two hundred eighty-nine".