74820535 has 4 divisors (see below), whose sum is σ = 89784648. Its totient is φ = 59856424.

The previous prime is 74820533. The next prime is 74820583. The reversal of 74820535 is 53502847.

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: 53502847 = 359 ⋅149033.

It is a cyclic number.

It is not a de Polignac number, because 74820535 - 2¹ = 74820533 is a prime.

It is a super-2 number, since 2×74820535² = 11196224915372450, which contains 22 as substring.

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 74820535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74820533) 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, 7482049 + ... + 7482058.

It is an arithmetic number, because the mean of its divisors is an integer number (22446162).

Almost surely, 2^74820535 is an apocalyptic number.

74820535 is a deficient number, since it is larger than the sum of its proper divisors (14964113).

74820535 is a wasteful number, since it uses less digits than its factorization.

74820535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14964112.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 74820535 is about 8649.8864154392. The cubic root of 74820535 is about 421.3796936788.

The spelling of 74820535 in words is "seventy-four million, eight hundred twenty thousand, five hundred thirty-five".