74543099 has 4 divisors (see below), whose sum is σ = 78466440. Its totient is φ = 70619760.

The previous prime is 74543089. The next prime is 74543101. The reversal of 74543099 is 99034547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99034547 = 43 ⋅2303129.

It is a cyclic number.

It is not a de Polignac number, because 74543099 - 2⁴ = 74543083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74543039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1961642 + ... + 1961679.

It is an arithmetic number, because the mean of its divisors is an integer number (19616610).

Almost surely, 2^74543099 is an apocalyptic number.

74543099 is a deficient number, since it is larger than the sum of its proper divisors (3923341).

74543099 is a wasteful number, since it uses less digits than its factorization.

74543099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923340.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 74543099 is about 8633.8345478704. The cubic root of 74543099 is about 420.8582205674.

The spelling of 74543099 in words is "seventy-four million, five hundred forty-three thousand, ninety-nine".