1604607 has 8 divisors (see below), whose sum is σ = 2252160. Its totient is φ = 1013400.

The previous prime is 1604597. The next prime is 1604609. The reversal of 1604607 is 7064061.

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

It is not a de Polignac number, because 1604607 - 2⁶ = 1604543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14019 + ... + 14132.

It is an arithmetic number, because the mean of its divisors is an integer number (281520).

2^1604607 is an apocalyptic number.

1604607 is a deficient number, since it is larger than the sum of its proper divisors (647553).

1604607 is a wasteful number, since it uses less digits than its factorization.

1604607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28173.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1604607 is about 1266.7308317081. The cubic root of 1604607 is about 117.0728598707.

Adding to 1604607 its reverse (7064061), we get a palindrome (8668668).

It can be divided in two parts, 1604 and 607, that added together give a triangular number (2211 = T₆₆).

The spelling of 1604607 in words is "one million, six hundred four thousand, six hundred seven".