381773773 has 4 divisors (see below), whose sum is σ = 394089088. Its totient is φ = 369458460.

The previous prime is 381773767. The next prime is 381773779. The reversal of 381773773 is 377377183.

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.

It is an interprime number because it is at equal distance from previous prime (381773767) and next prime (381773779).

It is a cyclic number.

It is not a de Polignac number, because 381773773 - 2¹³ = 381765581 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 (381773779) 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, 6157611 + ... + 6157672.

It is an arithmetic number, because the mean of its divisors is an integer number (98522272).

Almost surely, 2^381773773 is an apocalyptic number.

It is an amenable number.

381773773 is a deficient number, since it is larger than the sum of its proper divisors (12315315).

381773773 is a wasteful number, since it uses less digits than its factorization.

381773773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12315314.

The product of its digits is 518616, while the sum is 46.

The square root of 381773773 is about 19539.0320384609. The cubic root of 381773773 is about 725.4408879164.

The spelling of 381773773 in words is "three hundred eighty-one million, seven hundred seventy-three thousand, seven hundred seventy-three".