74427755 has 8 divisors (see below), whose sum is σ = 89427024. Its totient is φ = 59466400.

The previous prime is 74427739. The next prime is 74427803. The reversal of 74427755 is 55772447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74427755 - 2⁴ = 74427739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4961 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (11178378).

Almost surely, 2^74427755 is an apocalyptic number.

74427755 is a deficient number, since it is larger than the sum of its proper divisors (14999269).

74427755 is a wasteful number, since it uses less digits than its factorization.

74427755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18957.

The product of its digits is 274400, while the sum is 41.

The square root of 74427755 is about 8627.1521952496. The cubic root of 74427755 is about 420.6410373511.

The spelling of 74427755 in words is "seventy-four million, four hundred twenty-seven thousand, seven hundred fifty-five".