74984249 has 4 divisors (see below), whose sum is σ = 75077520. Its totient is φ = 74890980.

The previous prime is 74984233. The next prime is 74984251. The reversal of 74984249 is 94248947.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94248947 = 13 ⋅7249919.

It is a cyclic number.

It is not a de Polignac number, because 74984249 - 2⁴ = 74984233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74984219) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 45419 + ... + 47040.

It is an arithmetic number, because the mean of its divisors is an integer number (18769380).

Almost surely, 2^74984249 is an apocalyptic number.

It is an amenable number.

74984249 is a deficient number, since it is larger than the sum of its proper divisors (93271).

74984249 is an equidigital number, since it uses as much as digits as its factorization.

74984249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93270.

The product of its digits is 580608, while the sum is 47.

The square root of 74984249 is about 8659.3446056847. The cubic root of 74984249 is about 421.6868085664.

The spelling of 74984249 in words is "seventy-four million, nine hundred eighty-four thousand, two hundred forty-nine".