74389829 has 4 divisors (see below), whose sum is σ = 75286176. Its totient is φ = 73493484.

The previous prime is 74389823. The next prime is 74389837. The reversal of 74389829 is 92898347.

It is a happy number.

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: 92898347 = 53 ⋅1752799.

It is a cyclic number.

It is not a de Polignac number, because 74389829 - 2¹² = 74385733 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 (74389823) 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, 448049 + ... + 448214.

It is an arithmetic number, because the mean of its divisors is an integer number (18821544).

Almost surely, 2^74389829 is an apocalyptic number.

It is an amenable number.

74389829 is a deficient number, since it is larger than the sum of its proper divisors (896347).

74389829 is an equidigital number, since it uses as much as digits as its factorization.

74389829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896346.

The product of its digits is 870912, while the sum is 50.

The square root of 74389829 is about 8624.9538549490. The cubic root of 74389829 is about 420.5695768119.

The spelling of 74389829 in words is "seventy-four million, three hundred eighty-nine thousand, eight hundred twenty-nine".