3742705 has 4 divisors (see below), whose sum is σ = 4491252. Its totient is φ = 2994160.

The previous prime is 3742699. The next prime is 3742709. The reversal of 3742705 is 5072473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5072473 = 7 ⋅724639.

It can be written as a sum of positive squares in 2 ways, for example, as 531441 + 3211264 = 729^2 + 1792^2 .

It is not a de Polignac number, because 3742705 - 2⁷ = 3742577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3742709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374266 + ... + 374275.

It is an arithmetic number, because the mean of its divisors is an integer number (1122813).

Almost surely, 2^3742705 is an apocalyptic number.

It is an amenable number.

3742705 is a deficient number, since it is larger than the sum of its proper divisors (748547).

3742705 is an equidigital number, since it uses as much as digits as its factorization.

3742705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748546.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 3742705 is about 1934.6071952725. The cubic root of 3742705 is about 155.2608165177.

The spelling of 3742705 in words is "three million, seven hundred forty-two thousand, seven hundred five".