1603967 has 4 divisors (see below), whose sum is σ = 1698336. Its totient is φ = 1509600.

The previous prime is 1603963. The next prime is 1604003. The reversal of 1603967 is 7693061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7693061 = 17 ⋅452533.

It is not a de Polignac number, because 1603967 - 2² = 1603963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603963) 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, 47159 + ... + 47192.

It is an arithmetic number, because the mean of its divisors is an integer number (424584).

2^1603967 is an apocalyptic number.

1603967 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1603967 is a deficient number, since it is larger than the sum of its proper divisors (94369).

1603967 is an equidigital number, since it uses as much as digits as its factorization.

1603967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94368.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 1603967 is about 1266.4781877316. The cubic root of 1603967 is about 117.0572929034.

The spelling of 1603967 in words is "one million, six hundred three thousand, nine hundred sixty-seven".