1604734 has 8 divisors (see below), whose sum is σ = 2452680. Its totient is φ = 787176.

The previous prime is 1604731. The next prime is 1604737. The reversal of 1604734 is 4374061.

It is an interprime number because it is at equal distance from previous prime (1604731) and next prime (1604737).

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

It is a junction number, because it is equal to n+sod(n) for n = 1604699 and 1604708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604731) 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, 7464 + ... + 7675.

It is an arithmetic number, because the mean of its divisors is an integer number (306585).

2^1604734 is an apocalyptic number.

1604734 is a deficient number, since it is larger than the sum of its proper divisors (847946).

1604734 is a wasteful number, since it uses less digits than its factorization.

1604734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15194.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1604734 is about 1266.7809597559. The cubic root of 1604734 is about 117.0759484485.

Adding to 1604734 its reverse (4374061), we get a palindrome (5978795).

The spelling of 1604734 in words is "one million, six hundred four thousand, seven hundred thirty-four".