74383819 has 4 divisors (see below), whose sum is σ = 75106096. Its totient is φ = 73661544.

The previous prime is 74383783. The next prime is 74383831. The reversal of 74383819 is 91838347.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91838347 = 53 ⋅1732799.

It is a cyclic number.

It is not a de Polignac number, because 74383819 - 2¹³ = 74375627 is a prime.

It is a super-2 number, since 2×74383819² = 11065905058049522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74383019) 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, 360984 + ... + 361189.

It is an arithmetic number, because the mean of its divisors is an integer number (18776524).

Almost surely, 2^74383819 is an apocalyptic number.

74383819 is a deficient number, since it is larger than the sum of its proper divisors (722277).

74383819 is a wasteful number, since it uses less digits than its factorization.

74383819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722276.

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

The square root of 74383819 is about 8624.6054402506. The cubic root of 74383819 is about 420.5582504820.

The spelling of 74383819 in words is "seventy-four million, three hundred eighty-three thousand, eight hundred nineteen".