1609949603 has 8 divisors (see below), whose sum is σ = 1618822800. Its totient is φ = 1601092480.

The previous prime is 1609949557. The next prime is 1609949647. The reversal of 1609949603 is 3069499061.

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

It is a cyclic number.

It is not a de Polignac number, because 1609949603 - 2¹² = 1609945507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1609949683) 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, 234743 + ... + 241503.

It is an arithmetic number, because the mean of its divisors is an integer number (202352850).

Almost surely, 2^1609949603 is an apocalyptic number.

1609949603 is a deficient number, since it is larger than the sum of its proper divisors (8873197).

1609949603 is a wasteful number, since it uses less digits than its factorization.

1609949603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8037.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 1609949603 is about 40124.1772875158. The cubic root of 1609949603 is about 1172.0264884985.

The spelling of 1609949603 in words is "one billion, six hundred nine million, nine hundred forty-nine thousand, six hundred three".