378957763 has 4 divisors (see below), whose sum is σ = 379122120. Its totient is φ = 378793408.

The previous prime is 378957749. The next prime is 378957779. The reversal of 378957763 is 367759873.

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

It is a cyclic number.

It is not a de Polignac number, because 378957763 - 2⁵ = 378957731 is a prime.

It is a super-2 number, since 2×378957763² = 287217972275928338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378957263) 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, 78670 + ... + 83347.

It is an arithmetic number, because the mean of its divisors is an integer number (94780530).

Almost surely, 2^378957763 is an apocalyptic number.

378957763 is a deficient number, since it is larger than the sum of its proper divisors (164357).

378957763 is a wasteful number, since it uses less digits than its factorization.

378957763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164356.

The product of its digits is 6667920, while the sum is 55.

The square root of 378957763 is about 19466.8375192274. The cubic root of 378957763 is about 723.6528375129.

The spelling of 378957763 in words is "three hundred seventy-eight million, nine hundred fifty-seven thousand, seven hundred sixty-three".