74426999 has 4 divisors (see below), whose sum is σ = 75831336. Its totient is φ = 73022664.

The previous prime is 74426983. The next prime is 74427007. The reversal of 74426999 is 99962447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99962447 = 13 ⋅7689419.

It is a cyclic number.

It is not a de Polignac number, because 74426999 - 2⁴ = 74426983 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 (74426909) 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, 702089 + ... + 702194.

It is an arithmetic number, because the mean of its divisors is an integer number (18957834).

Almost surely, 2^74426999 is an apocalyptic number.

74426999 is a deficient number, since it is larger than the sum of its proper divisors (1404337).

74426999 is a wasteful number, since it uses less digits than its factorization.

74426999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404336.

The product of its digits is 979776, while the sum is 50.

The square root of 74426999 is about 8627.1083799846. The cubic root of 74426999 is about 420.6396131256.

It can be divided in two parts, 7442 and 6999, that added together give a palindrome (14441).

The spelling of 74426999 in words is "seventy-four million, four hundred twenty-six thousand, nine hundred ninety-nine".