74457755 has 4 divisors (see below), whose sum is σ = 89349312. Its totient is φ = 59566200.

The previous prime is 74457749. The next prime is 74457767. The reversal of 74457755 is 55775447.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 74457755 - 2¹⁰ = 74456731 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7445771 + ... + 7445780.

It is an arithmetic number, because the mean of its divisors is an integer number (22337328).

Almost surely, 2^74457755 is an apocalyptic number.

74457755 is a deficient number, since it is larger than the sum of its proper divisors (14891557).

74457755 is a wasteful number, since it uses less digits than its factorization.

74457755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14891556.

The product of its digits is 686000, while the sum is 44.

The square root of 74457755 is about 8628.8907166565. The cubic root of 74457755 is about 420.6975464495.

The spelling of 74457755 in words is "seventy-four million, four hundred fifty-seven thousand, seven hundred fifty-five".