1604107 has 4 divisors (see below), whose sum is σ = 1610176. Its totient is φ = 1598040.

The previous prime is 1604101. The next prime is 1604111. The reversal of 1604107 is 7014061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1604107 - 2¹¹ = 1602059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1604101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2619 + ... + 3172.

It is an arithmetic number, because the mean of its divisors is an integer number (402544).

2^1604107 is an apocalyptic number.

1604107 is a deficient number, since it is larger than the sum of its proper divisors (6069).

1604107 is an equidigital number, since it uses as much as digits as its factorization.

1604107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6068.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1604107 is about 1266.5334579078. The cubic root of 1604107 is about 117.0606985313.

Adding to 1604107 its reverse (7014061), we get a palindrome (8618168).

It can be divided in two parts, 1604 and 107, that added together give a triangular number (1711 = T₅₈).

The spelling of 1604107 in words is "one million, six hundred four thousand, one hundred seven".