1690000003 has 12 divisors (see below), whose sum is σ = 1778456848. Its totient is φ = 1605740400.

The previous prime is 1689999989. The next prime is 1690000021. The reversal of 1690000003 is 3000000961.

It is a de Polignac number, because none of the positive numbers 2^k-1690000003 is a prime.

It is a super-2 number, since 2×1690000003² = 5712200020280000018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1690000093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69301 + ... + 90457.

Almost surely, 2^1690000003 is an apocalyptic number.

1690000003 is a deficient number, since it is larger than the sum of its proper divisors (88456845).

1690000003 is a wasteful number, since it uses less digits than its factorization.

1690000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21354 (or 21331 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1690000003 is about 41109.6096186768. The cubic root of 1690000003 is about 1191.1384259012.

Adding to 1690000003 its reverse (3000000961), we get a palindrome (4690000964).

The spelling of 1690000003 in words is "one billion, six hundred ninety million, three", and thus it is an aban number.