3609742 has 4 divisors (see below), whose sum is σ = 5414616. Its totient is φ = 1804870.

The previous prime is 3609737. The next prime is 3609743. The reversal of 3609742 is 2479063.

3609742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2479063 = 19 ⋅130477.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609743) by changing a digit.

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 as a sum of consecutive naturals, namely, 902434 + ... + 902437.

It is an arithmetic number, because the mean of its divisors is an integer number (1353654).

Almost surely, 2^3609742 is an apocalyptic number.

3609742 is a deficient number, since it is larger than the sum of its proper divisors (1804874).

3609742 is a wasteful number, since it uses less digits than its factorization.

3609742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804873.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 3609742 is about 1899.9321040500. The cubic root of 3609742 is about 153.4000098591.

The spelling of 3609742 in words is "three million, six hundred nine thousand, seven hundred forty-two".