2903663993 has 4 divisors (see below), whose sum is σ = 2974485108. Its totient is φ = 2832842880.

The previous prime is 2903663951. The next prime is 2903664019. The reversal of 2903663993 is 3993663092.

2903663993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 781034809 + 2122629184 = 27947^2 + 46072^2 .

It is a cyclic number.

It is not a de Polignac number, because 2903663993 - 2⁶ = 2903663929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2903663093) 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, 35410496 + ... + 35410577.

It is an arithmetic number, because the mean of its divisors is an integer number (743621277).

Almost surely, 2^2903663993 is an apocalyptic number.

It is an amenable number.

2903663993 is a deficient number, since it is larger than the sum of its proper divisors (70821115).

2903663993 is an equidigital number, since it uses as much as digits as its factorization.

2903663993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70821114.

The product of its (nonzero) digits is 1417176, while the sum is 50.

The square root of 2903663993 is about 53885.6566536959. The cubic root of 2903663993 is about 1426.6434704925.

The spelling of 2903663993 in words is "two billion, nine hundred three million, six hundred sixty-three thousand, nine hundred ninety-three".