74089429 has 4 divisors (see below), whose sum is σ = 76091884. Its totient is φ = 72086976.

The previous prime is 74089397. The next prime is 74089453. The reversal of 74089429 is 92498047.

74089429 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92498047 = 2753 ⋅33599.

It can be written as a sum of positive squares in 2 ways, for example, as 45252529 + 28836900 = 6727^2 + 5370^2 .

It is a cyclic number.

It is not a de Polignac number, because 74089429 - 2⁵ = 74089397 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 (74089489) 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, 1001172 + ... + 1001245.

It is an arithmetic number, because the mean of its divisors is an integer number (19022971).

Almost surely, 2^74089429 is an apocalyptic number.

It is an amenable number.

74089429 is a deficient number, since it is larger than the sum of its proper divisors (2002455).

74089429 is a wasteful number, since it uses less digits than its factorization.

74089429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002454.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 74089429 is about 8607.5216526013. The cubic root of 74089429 is about 420.0027002850.

The spelling of 74089429 in words is "seventy-four million, eighty-nine thousand, four hundred twenty-nine".