74770 has 8 divisors (see below), whose sum is σ = 134604. Its totient is φ = 29904.

The previous prime is 74761. The next prime is 74771. The reversal of 74770 is 7747.

It can be written as a sum of positive squares in 2 ways, for example, as 71289 + 3481 = 267^2 + 59^2 .

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

It is not an unprimeable number, because it can be changed into a prime (74771) by changing a digit.

74770 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3729 + ... + 3748.

2⁷⁴⁷⁷⁰ is an apocalyptic number.

74770 is a deficient number, since it is larger than the sum of its proper divisors (59834).

74770 is a wasteful number, since it uses less digits than its factorization.

74770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7484.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 74770 is about 273.4410356914. The cubic root of 74770 is about 42.1284803424.

The spelling of 74770 in words is "seventy-four thousand, seven hundred seventy", and thus it is an iban number.