74426783 has 4 divisors (see below), whose sum is σ = 74812608. Its totient is φ = 74040960.

The previous prime is 74426773. The next prime is 74426813. The reversal of 74426783 is 38762447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38762447 = 1607 ⋅24121.

It is a cyclic number.

It is not a de Polignac number, because 74426783 - 2¹⁸ = 74164639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74426783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74426713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192623 + ... + 193008.

It is an arithmetic number, because the mean of its divisors is an integer number (18703152).

Almost surely, 2^74426783 is an apocalyptic number.

74426783 is a deficient number, since it is larger than the sum of its proper divisors (385825).

74426783 is a wasteful number, since it uses less digits than its factorization.

74426783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385824.

The product of its digits is 225792, while the sum is 41.

The square root of 74426783 is about 8627.0958612965. The cubic root of 74426783 is about 420.6392062023.

The spelling of 74426783 in words is "seventy-four million, four hundred twenty-six thousand, seven hundred eighty-three".