3992805903 has 8 divisors (see below), whose sum is σ = 5325676288. Its totient is φ = 2660903064.

The previous prime is 3992805877. The next prime is 3992805917. The reversal of 3992805903 is 3095082993.

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

It is not a de Polignac number, because 3992805903 - 2⁹ = 3992805391 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 (3992805503) 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, 232201 + ... + 248802.

It is an arithmetic number, because the mean of its divisors is an integer number (665709536).

Almost surely, 2^3992805903 is an apocalyptic number.

3992805903 is a deficient number, since it is larger than the sum of its proper divisors (1332870385).

3992805903 is a wasteful number, since it uses less digits than its factorization.

3992805903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483773.

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 3992805903 is about 63188.6532773092. The cubic root of 3992805903 is about 1586.4488211076.

The spelling of 3992805903 in words is "three billion, nine hundred ninety-two million, eight hundred five thousand, nine hundred three".