3820777969 has 4 divisors (see below), whose sum is σ = 3823903296. Its totient is φ = 3817652644.

The previous prime is 3820777949. The next prime is 3820777997. The reversal of 3820777969 is 9697770283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9697770283 = 53639 ⋅180797.

It is a cyclic number.

It is not a de Polignac number, because 3820777969 - 2⁵ = 3820777937 is a prime.

It is a super-2 number, since 2×3820777969² = 29196688576791529922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3820777949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1560829 + ... + 1563274.

It is an arithmetic number, because the mean of its divisors is an integer number (955975824).

Almost surely, 2^3820777969 is an apocalyptic number.

It is an amenable number.

3820777969 is a deficient number, since it is larger than the sum of its proper divisors (3125327).

3820777969 is a wasteful number, since it uses less digits than its factorization.

3820777969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125326.

The product of its (nonzero) digits is 8001504, while the sum is 58.

The square root of 3820777969 is about 61812.4418624600. The cubic root of 3820777969 is about 1563.3297779627.

The spelling of 3820777969 in words is "three billion, eight hundred twenty million, seven hundred seventy-seven thousand, nine hundred sixty-nine".