1604167 has 2 divisors, whose sum is σ = 1604168. Its totient is φ = 1604166.

The previous prime is 1604149. The next prime is 1604177. The reversal of 1604167 is 7614061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1604167 - 2¹¹ = 1602119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604147) 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, 802083 + 802084.

It is an arithmetic number, because the mean of its divisors is an integer number (802084).

2^1604167 is an apocalyptic number.

1604167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604167 is an equidigital number, since it uses as much as digits as its factorization.

1604167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1604167 is about 1266.5571443879. The cubic root of 1604167 is about 117.0621580254.

It can be divided in two parts, 1604 and 167, that added together give a palindrome (1771).

The spelling of 1604167 in words is "one million, six hundred four thousand, one hundred sixty-seven".