3787820823 has 4 divisors (see below), whose sum is σ = 5050427768. Its totient is φ = 2525213880.

The previous prime is 3787820797. The next prime is 3787820831. The reversal of 3787820823 is 3280287873.

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

It is not a de Polignac number, because 3787820823 - 2¹³ = 3787812631 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 (3787820843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631303468 + ... + 631303473.

It is an arithmetic number, because the mean of its divisors is an integer number (1262606942).

Almost surely, 2^3787820823 is an apocalyptic number.

3787820823 is a deficient number, since it is larger than the sum of its proper divisors (1262606945).

3787820823 is a wasteful number, since it uses less digits than its factorization.

3787820823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262606944.

The product of its (nonzero) digits is 903168, while the sum is 48.

The square root of 3787820823 is about 61545.2745789634. The cubic root of 3787820823 is about 1558.8218179195.

The spelling of 3787820823 in words is "three billion, seven hundred eighty-seven million, eight hundred twenty thousand, eight hundred twenty-three".