1999697003 has 8 divisors (see below), whose sum is σ = 2010997248. Its totient is φ = 1988429184.

The previous prime is 1999696991. The next prime is 1999697017. The reversal of 1999697003 is 3007969991.

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 1999697003 - 2⁶ = 1999696939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1999697803) 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, 121325 + ... + 136817.

It is an arithmetic number, because the mean of its divisors is an integer number (251374656).

Almost surely, 2^1999697003 is an apocalyptic number.

1999697003 is a deficient number, since it is larger than the sum of its proper divisors (11300245).

1999697003 is a wasteful number, since it uses less digits than its factorization.

1999697003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16213.

The product of its (nonzero) digits is 826686, while the sum is 53.

The square root of 1999697003 is about 44717.9718122367. The cubic root of 1999697003 is about 1259.8574212985.

The spelling of 1999697003 in words is "one billion, nine hundred ninety-nine million, six hundred ninety-seven thousand, three".