74854399 has 4 divisors (see below), whose sum is σ = 75272760. Its totient is φ = 74436040.

The previous prime is 74854393. The next prime is 74854411. The reversal of 74854399 is 99345847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99345847 = 239 ⋅415673.

It is a cyclic number.

It is not a de Polignac number, because 74854399 - 2⁹ = 74853887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74854393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208912 + ... + 209269.

It is an arithmetic number, because the mean of its divisors is an integer number (18818190).

Almost surely, 2^74854399 is an apocalyptic number.

74854399 is a deficient number, since it is larger than the sum of its proper divisors (418361).

74854399 is a wasteful number, since it uses less digits than its factorization.

74854399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418360.

The product of its digits is 1088640, while the sum is 49.

The square root of 74854399 is about 8651.8436763501. The cubic root of 74854399 is about 421.4432566640.

The spelling of 74854399 in words is "seventy-four million, eight hundred fifty-four thousand, three hundred ninety-nine".